Individual Page


Family:
Marriage: Children:
  1. Frederick II The Turbulent Duke Of Brunswick-Wolfenbuttel And Calen Birth: 1424 Death: 6 Mar 1495 in Munich
  2. William II Duke Of Brunswick Birth: 1425 Death: 7 Jul 1503 in Hardegsen

Bibliography
  1. Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. I.1: Die frankischen Konige und die Konige und Kaiser, Stammesherzoge, Kurfursten, Markgrafen und Herzoge des Heiligen Romischen Reiches Deutscher Nation. Frankfurt am Main: Vittorio Klostermann, 1998. Information from this source tagged as [Ref: ES I.1 #[0-9]*].
  2. Paget, Gerald, The Lineage and Ancestry of H.R.H. Prince Charles, Prince of Wales. London: Charles Skilton Ltd, 1977. Nypl ARF+ 78-835. Information from this source tagged as [Ref: Paget HRHCharles p[0-9]*].
  3. Thompson, Neil D, and Hansen, Charles M, Medieval Heritage: The Ancestry of Charles II, King of England, The Genealogist, 2:157-68, 3:25-44, 3:175-94, 4:144-58, 5:64-72, 5:226-39, 6:100-3, 6:148-65, 7-8:137-43, 9:40-4, 10:73-85, 11:63-72, 11:184-93, 12:83-90, 12:250-6, 13:92-9, 13:252-6, 14:81-4, 14:207-10, 15:99-103, 15:220-4, 16:93-8, 16:227-31, 17:61-4, 17:250-5, 18:123-7, 18:228-31, 19:62-8, 19:251-5, 20:85-8, 20:184-90, 21:71-5, 21:250-4, 22:101-6, 22:186-91, 23:73-9, 23:203-8, 24:110-27, 24:239-54, 25:56-73, 25:214-32, 26:77-101, 26:202-26, 27:189, 28:90, 33:300. NYPL APA 82-1000. Available at https://www.americanancestors.org/databases/genealogist-the/image/. Reprinted, with further corrections, as Thompson, Neil D, and Hansen, Charles M, The Ancestry of Charles II, King of England: A Medieval Heritage. Saline, Michigan: McNaughton & Gunn, 2012. NYPL ARF 13-5787. Information from this source tagged as [Ref: Thompson CharlesII v[0-9]*-[0-9]*].

Sources for birth and parent Information
date:
abt 1405 [Ref: Thompson CharlesII v04-153],
parents:
[Ref: Paget HRHCharles p233, Thompson CharlesII v07-139],
father:
[Ref: ES I.1 #26]
Sources for death Information
date:
[Ref: ES I.1 #26, Paget HRHCharles p233, Thompson CharlesII v04-153]
Sources with Inaccurate death Information
note:
Grossmann says 1427, but she is mentioned in documents 21 Dec 1429 [Ref: Thompson CharlesII v04-153(35)]
Sources for burial Information
place:
[Ref: ES I.1 #26, Thompson CharlesII v04-153]
Sources with Information about marriage to William I The Victorious Duke Of Brunswick
date:
[Ref: ES I.1 #26, Thompson CharlesII v04-153],
place:
[Ref: ES I.1 #26, Paget HRHCharles p233, Thompson CharlesII v04-153],
child:
[Ref: ES I.1 #26, Paget HRHCharles p233, Thompson CharlesII v04-153]
Sources with Inaccurate marriage information
date:
30 May 1423 [Ref: Paget HRHCharles p233],
note:
date of 30 May and place of Tangermunde are incorrect [Ref: Thompson CharlesII v04-153(34)]
Research Notes:
Margravine of Brandenburg [Ref: Thompson CharlesII v04-153]

1432: driven out of Wolfenbuttel with her children by her husband's brother, who disputed the division of their lands [Ref: Thompson CharlesII v04-153]



Pedigree of Cecily Of Brandenburg
                                                                /-----Friedrich III Count Of Zollern
                                                       /-----Friedrich IV Count Of Zollern
                                              /-----Konrad Burggraf Von Nurnberg
                                             |        |         /-----Konrad Burggraf Von Nurnberg
                                             |         \-----Sophie Of Raabs
                                     /-----Friedrich III Burggraf Von Nurnberg
                            /-----Friedrich IV Burggraf Von Nurnberg
                           |        |                           /-----Albert The Bear Margrave Of Brandenburg
                           |        |                  /-----Bernard Duke Of Saxony
                           |        |                 |         \-----Sophia Of Wizenburg
                           |        |         /-----Albert I Duke Of Saxony
                           |        |        |        |         /-----Mieszko III Prince Of Great Poland
                           |        |        |         \-----Jutta Of Poland
                           |        |        |                  \-----Elizabeth Of Hungary
                           |         \-----Helen Of Saxony
                           |                 |                  /-----Leopold V Duke Of Austria
                           |                 |         /-----Leopold VI Duke Of Styria And Austria
                           |                 |        |         \-----Helene Princess Of Hungary
                           |                  \-----Agnes Of Austria
                           |                          |         /-----Isaac II Angelus, Eastern Roman Emperor
                           |                           \-----Theodora ANGELINA
                           |                                    \-----Margaret Of Hungary
                   /-----Johann II Burggraf Von Nurnberg
                  |         \-----Margareta Countess of Gorz
          /-----Frederick V Burggraf Of Nurnberg
         |        |                                             /-----Poppo VI Count Of Henneburg
         |        |                                    /-----Poppo VII Count Of Henneberg
         |        |                                   |         \-----Sophia Of Andechs
         |        |                           /-----Heinrich II Count Of Henneberg
         |        |                          |        |         /-----Berthold Of Wildberg
         |        |                          |         \-----Elizabeth Of Wildberg
         |        |                          |                  \-----(Unk) Of Auhausen
         |        |                  /-----Berthold IV Count Of Henneberg
         |        |                 |        |                  /-----Otto The Rich Margrave Of Meissen
         |        |                 |        |         /-----Dietrich The Oppressed Margrave Of Meissen, Count Of Weissenfel
         |        |                 |        |        |         \-----Hedwig Of Ascania
         |        |                 |         \-----Sophia Of Meissen
         |        |                 |                 |         /-----Hermann I Landgrave Of Thuringia
         |        |                 |                  \-----Jutta Of Thuringia
         |        |                 |                           \-----Sophia Of Sommerschenburg
         |        |         /-----Berthold VI Count Of Henneberg
         |        |        |        |                           /-----Gunther II Count Of Kafernburg
         |        |        |        |                  /-----Heinrich II Count Of Kafernburg And Schwarzburg
         |        |        |        |                 |         \-----Agnes Of Saarbrucken
         |        |        |        |         /-----Gunther IV Count Of Schwarzburg
         |        |        |        |        |        |         /-----Siegfried III Count Of Orlamunde
         |        |        |        |        |         \-----Irmgard Of Orlamunde
         |        |        |        |        |                  \-----Sophie Of Denmark
         |        |        |         \-----Sophia Of Schwarzburg
         |        |        |                 |                  /-----Roman Wstislawitsch Grand Prince Of Kiev
         |        |        |                 |         /-----Daniel Romanowitsch King Of Halicz
         |        |        |                 |        |         \-----(Unk) Of Byzanz
         |        |        |                  \-----Sofija Of Halicz
         |        |        |                          |         /-----Mstislav Mstislawitsch Prince Of Novgorod
         |        |        |                           \-----Anna Mstislawna Of Novgorod
         |        |        |                                    \-----(Unk)
         |         \-----Elizabeth Countess Of Henneberg
         |                 |                                    /-----Godfrey III Count Of Louvain
         |                 |                           /-----Henry I The Warrior Duke Of Brabant
         |                 |                          |         \-----Margaret Von LIMBOURG
         |                 |                  /-----Henry II The Conqueror Duke Of Brabant
         |                 |                 |        |         /-----Matthew Of Alsace, Count Of Boulogne
         |                 |                 |         \-----Maud Of Boulogne
         |                 |                 |                  \-----Mary Countess Of Mortagne And Boulogne
         |                 |         /-----Heinrich I Landgraf Of Hessen
         |                 |        |        |                  /-----Hermann I Landgrave Of Thuringia
         |                 |        |        |         /-----Louis IV Margrave Of Thuringa
         |                 |        |        |        |         \-----Sophia Of Bavaria, Duchess Of Bavaria
         |                 |        |         \-----Sophie Of Hessen
         |                 |        |                 |         /-----Andrew II King Of Hungary
         |                 |        |                  \-----Saint Elizabeth Of Hungary
         |                 |        |                           \-----Gertrude Of Meran
         |                  \-----Adelaide Of Hessen
         |                          |                           /-----Henry V The Lion Duke Of Saxony
         |                          |                  /-----William Duke Of Luneburg
         |                          |                 |         \-----Maud Of England
         |                          |         /-----Otto Duke Of Brunswick
         |                          |        |        |         /-----Valdemar I King Of Denmark
         |                          |        |         \-----Helen
         |                          |        |                  \-----Sophia Princess Of Poland
         |                           \-----Adelheid Of Brunswick
         |                                   |                  /-----Otto I Margrave Of Brandenberg
         |                                   |         /-----Albert II Margrave Of Brandenburg
         |                                   |        |         \-----Judith Of Poland
         |                                    \-----Maud Of Brandenburg
         |                                            |         /-----Conrad III Margrave Of Lauzitz, Count Of Rocklitz
         |                                             \-----Maud Of Lauzitz
         |                                                      \-----Elizabeth Of Poland
 /-----Friedrich VI Burggraf Of Nurnberg
|        |                                                      /-----Otto The Rich Margrave Of Meissen
|        |                                             /-----Dietrich The Oppressed Margrave Of Meissen, Count Of Weissenfel
|        |                                            |         \-----Hedwig Of Ascania
|        |                                    /-----Henry The Illustrious Margrave Of Meissen, Landgrave Of Thurin
|        |                                   |        |         /-----Hermann I Landgrave Of Thuringia
|        |                                   |         \-----Jutta Of Thuringia
|        |                                   |                  \-----Sophia Of Sommerschenburg
|        |                           /-----Albert The Degenerate Landgrave Of Thuringia, Margrave Of Meis
|        |                          |        |                  /-----Leopold V Duke Of Austria
|        |                          |        |         /-----Leopold VI Duke Of Styria And Austria
|        |                          |        |        |         \-----Helene Princess Of Hungary
|        |                          |         \-----Constance Of Austria
|        |                          |                 |         /-----Isaac II Angelus, Eastern Roman Emperor
|        |                          |                  \-----Theodora ANGELINA
|        |                          |                           \-----Margaret Of Hungary
|        |                  /-----Frederick The Bold Margrave Of Meissen, Landgrave Of Thurin
|        |                 |        |                           /-----Frederick III Barbarossa Duke Of Swabia, Emperor
|        |                 |        |                  /-----Henry VI King Of Sicily
|        |                 |        |                 |         \-----Beatrix Of Macon, Countess Of Burgundy
|        |                 |        |         /-----Frederick II Duke Of Swabia, King Of Sicily, Emperor
|        |                 |        |        |        |         /-----Roger III King Of Sicily
|        |                 |        |        |         \-----Constance Of Sicily
|        |                 |        |        |                  \-----Beatrix Of Rethel
|        |                 |         \-----Margaret Of Swabia
|        |                 |                 |                  /-----Henry II Curt Mantel PLANTAGENET, King Of England
|        |                 |                 |         /-----John Lackland PLANTAGENET, King Of England
|        |                 |                 |        |         \-----Eleanor Duchess Of Aquitaine
|        |                 |                  \-----Isabella PLANTAGENET
|        |                 |                          |         /-----Aymer Tailefer, Count Of Angouleme
|        |                 |                           \-----Isabel Of Angouleme
|        |                 |                                    \-----Alice De Courtenay
|        |         /-----Friedrich II Markgraf Of Meissen
|        |        |        |                                    /-----Hermann Of Lobdeburg
|        |        |        |                           /-----Hartmann Of Lobdeburg
|        |        |        |                  /-----Otto Of Arnshaugk
|        |        |        |                 |        |         /-----Albert The Proud Margrave Of Meissen
|        |        |        |                 |         \-----Christina Of Meissen
|        |        |        |                 |                  \-----Sophia Of Bohemia
|        |        |        |         /-----Hartmann XI Von Lobdaburg, Count Of Arnshauek
|        |        |        |        |        |                  /-----Heinrich II Count Of Kafernburg And Schwarzburg
|        |        |        |        |        |         /-----Gunther IV Count Of Schwarzburg
|        |        |        |        |        |        |         \-----Irmgard Of Orlamunde
|        |        |        |        |         \-----(Unk) Of Schwarzburg
|        |        |        |        |                 |         /-----Daniel Romanowitsch King Of Halicz
|        |        |        |        |                  \-----Sofija Of Halicz
|        |        |        |        |                           \-----Anna Mstislawna Of Novgorod
|        |        |         \-----Elizabeth Countess Of Lobdburg-Arnshaugk
|        |        |                 |                           /-----Siegfried III Count Of Orlamunde
|        |        |                 |                  /-----Herman II Count Of Orlamunde
|        |        |                 |                 |         \-----Sophie Of Denmark
|        |        |                 |         /-----Hermann III Count Of Orlamunda
|        |        |                 |        |        |         /-----Otto VI Of Andechs, Count Of Burgundy
|        |        |                 |        |         \-----Beatrix Countess Of Andechs
|        |        |                 |        |                  \-----Beatrix II Countess Of Burgundy
|        |        |                  \-----Elizabeth Of Orlamunda
|         \-----Elizabeth Of Thuringia
|                 |                                             /-----Otto I Duke Of Bavaria
|                 |                                    /-----Louis I Duke Of Bavaria
|                 |                                   |         \-----Agnes
|                 |                           /-----Otto II Von Wittelsbach, Duke Of Bavaria
|                 |                          |        |         /-----Frederick Duke Of Bohemia
|                 |                          |         \-----Ludmilla Duchess Of Bohemia
|                 |                          |                  \-----Elizabeth Of Hungary
|                 |                  /-----Louis II Duke Of Upper Bavaria
|                 |                 |        |                  /-----Henry V The Lion Duke Of Saxony
|                 |                 |        |         /-----Henry Count Palatine Of Rhine
|                 |                 |        |        |         \-----Maud Of England
|                 |                 |         \-----Agnes Of Celle
|                 |                 |                 |         /-----Conrad Count Palatine Of Rhine
|                 |                 |                  \-----Agnes Of Staufen
|                 |                 |                           \-----Irmgard Of Henneberg
|                 |         /-----Louis The Bavarian Count Of Hainault, German King
|                 |        |        |                           /-----Rudolf II Count Of Habsburg
|                 |        |        |                  /-----Albrecht IV Count Of Habsburg
|                 |        |        |                 |         \-----Agnes Of Staufen
|                 |        |        |         /-----Rudolph I Emperor, Count Of Hapsburg
|                 |        |        |        |        |         /-----Ulrich Count Of Kiburg
|                 |        |        |        |         \-----Heilwig Of Kiburg
|                 |        |        |        |                  \-----Anna Of Zahringen
|                 |        |         \-----Mathilde Of Habsburg
|                 |        |                 |                  /-----Burchard II Count Of Hohenberg
|                 |        |                 |         /-----Burchard III Count Of Hohenberg And Zollern
|                 |        |                 |        |         \-----Wilipirg Of Aichelberg
|                 |        |                  \-----Gertrude Anna Of Hohenberg
|                 |        |                          |         /-----Rudolf II Pfalzgraf Of Tubingen
|                 |        |                           \-----Mechtild Of Tubingen
|                 |        |                                    \-----(Unk) Of Ronsburg
|                  \-----Mechtild Of Bavaria
|                          |         /-----Bolko I Duke of Jauer and Schweidnitz
|                           \-----Beatrix Of Silesta-Glogau
|                                    \-----Beatrix Of Brandenburg
Cecily Of Brandenburg
|                                                               /-----Otto I Duke Of Bavaria
|                                                      /-----Louis I Duke Of Bavaria
|                                                     |         \-----Agnes
|                                             /-----Otto II Von Wittelsbach, Duke Of Bavaria
|                                            |        |         /-----Frederick Duke Of Bohemia
|                                            |         \-----Ludmilla Duchess Of Bohemia
|                                            |                  \-----Elizabeth Of Hungary
|                                    /-----Louis II Duke Of Upper Bavaria
|                                   |        |                  /-----Henry V The Lion Duke Of Saxony
|                                   |        |         /-----Henry Count Palatine Of Rhine
|                                   |        |        |         \-----Maud Of England
|                                   |         \-----Agnes Of Celle
|                                   |                 |         /-----Conrad Count Palatine Of Rhine
|                                   |                  \-----Agnes Of Staufen
|                                   |                           \-----Irmgard Of Henneberg
|                           /-----Louis The Bavarian Count Of Hainault, German King
|                          |        |                           /-----Rudolf II Count Of Habsburg
|                          |        |                  /-----Albrecht IV Count Of Habsburg
|                          |        |                 |         \-----Agnes Of Staufen
|                          |        |         /-----Rudolph I Emperor, Count Of Hapsburg
|                          |        |        |        |         /-----Ulrich Count Of Kiburg
|                          |        |        |         \-----Heilwig Of Kiburg
|                          |        |        |                  \-----Anna Of Zahringen
|                          |         \-----Mathilde Of Habsburg
|                          |                 |                  /-----Burchard II Count Of Hohenberg
|                          |                 |         /-----Burchard III Count Of Hohenberg And Zollern
|                          |                 |        |         \-----Wilipirg Of Aichelberg
|                          |                  \-----Gertrude Anna Of Hohenberg
|                          |                          |         /-----Rudolf II Pfalzgraf Of Tubingen
|                          |                           \-----Mechtild Of Tubingen
|                          |                                    \-----(Unk) Of Ronsburg
|                  /-----Stephen II Duke Of Bavaria
|                 |        |         /-----Bolko I Duke of Jauer and Schweidnitz
|                 |         \-----Beatrix Of Silesta-Glogau
|                 |                  \-----Beatrix Of Brandenburg
|         /-----Friedrich Duke Of Bavaria In Landshut
|        |        |                                             /-----Alfonso II King Of Aragon
|        |        |                                    /-----Peter II King Of Aragon
|        |        |                                   |         \-----Sancha Of Castile
|        |        |                           /-----James I The Conqueror King Of Aragon
|        |        |                          |        |         /-----William Count Of Montpellier
|        |        |                          |         \-----Mary Of Montpellier
|        |        |                          |                  \-----Eudoxia KOMNENA
|        |        |                  /-----Peter III King Of Aragon And Sicily
|        |        |                 |        |                  /-----Bela III King Of Hungary
|        |        |                 |        |         /-----Andrew II King Of Hungary
|        |        |                 |        |        |         \-----Agnes Of Chatillon
|        |        |                 |         \-----Iolande Of Hungary
|        |        |                 |                 |         /-----Peter De COURTENAY, Emperor Of Constantinople
|        |        |                 |                  \-----Iolande De Courtenay
|        |        |                 |                           \-----Iolande Of Hainault, Countess Of Namur
|        |        |         /-----Frederick II King Of Sicily
|        |        |        |        |                           /-----Henry VI King Of Sicily
|        |        |        |        |                  /-----Frederick II Duke Of Swabia, King Of Sicily, Emperor
|        |        |        |        |                 |         \-----Constance Of Sicily
|        |        |        |        |         /-----Manfred King Of Sicily
|        |        |        |        |        |        |         /-----Manfredo Lancia Marquis of Busca, Count of Loreto
|        |        |        |        |        |         \-----Blanca LANCIA
|        |        |        |        |        |                  \-----Blanca LANCIA
|        |        |        |         \-----Constance Of Sicily
|        |        |        |                 |                  /-----Thomas I Count Of Savoy
|        |        |        |                 |         /-----Amadeus IV Count Of Savoy, Marquess Of Turin
|        |        |        |                 |        |         \-----Margaret Of Geneva
|        |        |        |                  \-----Beatrice Of Savoy
|        |        |        |                          |         /-----Hugh III Duke Of Burgundy
|        |        |        |                           \-----Anna Of Burgundy
|        |        |        |                                    \-----Beatrix Of Albon
|        |         \-----Elizabeth Of Sicily
|        |                 |                                    /-----Philip II Augustus King Of France
|        |                 |                           /-----Louis VIII The Lion King Of France
|        |                 |                          |         \-----Isabella Of Hainaut, Countess Of Artois
|        |                 |                  /-----Charles Of Anjou, Count Of Provence
|        |                 |                 |        |         /-----Alfonso VIII The Good King Of Castile
|        |                 |                 |         \-----Blanche Of Castile
|        |                 |                 |                  \-----Eleanor Of England
|        |                 |         /-----Charles II The Lame King Of Naples
|        |                 |        |        |                  /-----Alfonso II Count Of Provence
|        |                 |        |        |         /-----Raymond Berengar IV Count Of Provence And Forcalquier
|        |                 |        |        |        |         \-----Gersenda II Of Sabran
|        |                 |        |         \-----Beatrix Countess Of Provence
|        |                 |        |                 |         /-----Thomas I Count Of Savoy
|        |                 |        |                  \-----Beatrice Of Savoy
|        |                 |        |                           \-----Margaret Of Geneva
|        |                  \-----Eleanor Of Naples
|        |                          |                           /-----Andrew II King Of Hungary
|        |                          |                  /-----Bela IV King Of Hungary
|        |                          |                 |         \-----Gertrude Of Meran
|        |                          |         /-----Stephen V King Of Hungary
|        |                          |        |        |         /-----Theodore I Laskaris, Emperor Of Nicaea
|        |                          |        |         \-----Mary Of Nicaca
|        |                          |        |                  \-----Anna Angelina
|        |                           \-----Mary Of Hungary
|        |                                   |         /-----Kuthen Khan Of Cumans
|        |                                    \-----Elizabeth Of Cumans
|        |                                            |         /-----Mustilau De HALICH
|        |                                             \-----(Unk) De HALICH
|        |                                                      \-----(Unk) De KOUMANIE
 \-----Elizabeth Of Bavaria
         |                                                      /-----(Unk) VISCONTI
         |                                             /-----Andrew VISCONTI
         |                                    /-----Theobald VISCONTI
         |                           /-----Matthew I VISCONTI, Lord of Milan
         |                  /-----Stefano Visconti, Lord Of Arona
         |                 |         \-----Bonacossa BORRI
         |         /-----Barnabo VISCONTI. Duke Of Milan
         |        |        |                  /-----Branca DORIA
         |        |        |         /-----Barnabo DORIA
         |        |         \-----Valentina DORIA
         |        |                  \-----Eliana Di Federigo FIESCHE
          \-----Magdalena Visconti Of Milan
                  |                                             /-----Leonardo Della Scala
                  |                                    /-----Jacopino Della Scala
                  |                           /-----Alberto I Lord Of Verona
                  |                          |         \-----Elisabeth Superbi
                  |                  /-----Alboino De La Scala, Lord Of Verona
                  |                 |         \-----Verde Of Salizzole
                  |         /-----Mastin II De La Scala, Lord Of Verona
                  |        |        |                  /-----Guy De Corregio
                  |        |        |         /-----Gilbert De Corregio, Lord Of Parma
                  |        |        |        |        |         /-----Guibert Della Gente
                  |        |        |        |         \-----Mabile Della Gente
                  |        |         \-----Beatrice Of Correggio
                  |        |                 |         /-----Morello Malaspina Marquess Of Mulazzo
                  |        |                  \-----Helena Malaspina
                  |        |                           \-----Berlande
                   \-----Beatrix De La Scala
                           |         /-----Jacomo Lord Of Padua
                            \-----Thaddea De CURRARA
                                     \-----Elisabetta Gradenigo



Descendants of Cecily Of Brandenburg
1. Cecily Of Brandenburg m. William I The Victorious Duke Of Brunswick
m. William I The Victorious Duke Of Brunswick father: Henry Duke Of Brunswick mother: Sophia Of Pomerania

2nd generation

3. William II Duke Of Brunswick m. Elizabeth Of Stolberg
m. Elizabeth Of Stolberg father: Botho VII Count Of Stolberg-Wernigerode mother: Anna Of Schwarzburg

3rd generation

5. Henry The Bad Duke Of Brunswick-Wolfenbuttel m. Catherine Of Pomerania
m. Catherine Of Pomerania father: Eric II Duke Of Pomerania-Wolgast mother: Sophia Of Pomerania

4th generation

11. Katharina Of Brunswick m. Magnus I Duke Of Saxony-Lauenburg
m. Magnus I Duke Of Saxony-Lauenburg father: John V Duke Of Saxony-Lauenburg mother: Dorothea Of Brandenburg

5th generation

16. Dorothea Of Saxe-Lauenburg m. Christian III King Of Denmark
m. Christian III King Of Denmark father: Frederick I King Of Denmark mother: Anna Of Brandenburg