Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 01-20-2025.

Submitted and Maintained by Bill Marshall, bill.marshall@verizon.net.

Additions and corrections appreciated (especially with sources). My current list of sources is here. Homepage here.

Index of Medieval and Ancient Lines is here, notable people here, and Gedcom available to be downloaded.

Index of Modern Lines (immigrants to America and their descendants) is here, notable people here, and Gedcom here.

Individual Page

Person Info

Name: Isabeau De Brienne
Sex: F
Death: Abt 27 Aug 1274 ^d

Parents:

Father:
Erard De Brienne, Lord Of Ramerupt Death: Abt Aug 1245

Mother:

Philippe Of Champagne Birth: Abt 1195 Death: 20 Dec 1250

Family:
Marriage:

Henry V Count Of Grandpre on Before May 1237 .^m1
Henry V Count Of Grandpre Death: After 7 Apr 1287

Children:

Henri De Grandpre, Lord Of Livre Death: Before 1287
Isabel De Grandpre Birth: Abt 1253 Death: Before 4 Apr 1292

Bibliography

Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. III.4 (#601-#820): Das Feudale Frankreich und sein Einfluss auf die Welt des Mittelalters. Marburg: Verlag von J. A. Stargardt, 1989. Information from this source tagged as [Ref: ES III.4 #[0-9]*].
Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. VII: Familien des Alten Lotharingien II. Marburg: Verlag von J. A. Stargardt, 1979. Information from this source tagged as [Ref: ES VII #[0-9]*].

Sources for birth and parent Information

parents:: [Ref: ES III.4 #686]

Sources for death Information

date:: 27.VIII 1274/II 1277 [Ref: ES III.4 #686, ES VII #11]

Sources with Information about marriage to Henry V Count Of Grandpre

date:: vor V 1237 [Ref: ES III.4 #686, ES VII #11],
child:: [Ref: ES VII #11]

Research Notes:

Pedigree of Isabeau De Brienne
                                     /-----Walter I Count Of Brienne
                            /-----Erard I Count Of Brienne
                           |        |                           /-----(Unk Son)
                           |        |                  /-----Milo Count
                           |        |         /-----Milo Count Of Tonnerre
                           |         \-----Estachia
                           |                  \-----Azcha
                   /-----Walter II Count Of Brienne
                  |        |                                    /-----Hildouin I Seigneur De Rameru
                  |        |                           /-----Hildouin II De Rameru
                  |        |                  /-----Hildouin III De Rameru, Count Of Montdidier And Roucy
                  |        |                 |         \-----Anonima
                  |        |         /-----Andre De Roucy, Lord Of Rameru
                  |        |        |        |                  /-----Giselbert Count Of Roucy
                  |        |        |        |         /-----Ebles I Count Of Rheims And Roucy
                  |        |        |        |        |         \-----(Unk Dau)
                  |        |        |         \-----Adele De Roucy
                  |        |        |                 |         /-----Regnier IV Count Of Hainault
                  |        |        |                  \-----Beatrix Of Hainault
                  |        |        |                           \-----Hedwig Of France
                  |         \-----Alix Of Rameru
                  |                  \-----Adele
          /-----Audre De Brienne, Lord Of Ramerupt
         |         \-----(Unk) Of Soissons
/-----Erard De Brienne, Lord Of Ramerupt
|        |         /-----Anseau Of Venisy
|         \-----Adelais Of Venisy
Isabeau De Brienne
|                                                               /-----Eudes I Count Of Blois
|                                                      /-----Eudes II Count Of Blois
|                                                     |         \-----Bertha Of Burgandy
|                                             /-----Theobald III Count Of Blois And Champagne
|                                            |        |         /-----Robert I Count Of Auvergne
|                                            |         \-----Ermengarde Of Auvergne
|                                            |                  \-----Ermengarde
|                                    /-----Stephen Count Of Blois, Leader Of First Crusade
|                                   |        |                  /-----Hugh III Count Of Maine
|                                   |        |         /-----Herbert Count Of Maine
|                                   |         \-----Garsend Of Maine
|                           /-----Theobald IV Count Of Blois
|                          |        |                           /-----Richard II The Good Duke Of Normandy
|                          |        |                  /-----Robert I The Devil Duke Of Normandy
|                          |        |                 |         \-----Judith Of Brittany
|                          |        |         /-----William The Conqueror King Of England
|                          |        |        |        |         /-----Fulbert Of Falaise
|                          |        |        |         \-----Herleve Of Falaise
|                          |        |        |                  \-----Duxia
|                          |         \-----Adela
|                          |                 |                  /-----Baldwin IV The Bearded Count Of Flanders
|                          |                 |         /-----Baldwin V Count Of Flanders
|                          |                 |        |         \-----Ogive Of Luxembourg
|                          |                  \-----Maud Of Flanders
|                          |                          |         /-----Robert II The Pious King Of France
|                          |                           \-----Adelaide Of France
|                          |                                    \-----Constance Of Provence
|                  /-----Henry I Count Of Champagne
|                 |        |                                    /-----Eberhard Von Spondheim
|                 |        |                           /-----Siegfried Von Spondheim, Count Of Levanthal
|                 |        |                          |         \-----Hedwig
|                 |        |                  /-----Engelbert I Von Spondheim, Count In Lavanthal
|                 |        |                 |        |         /-----Engelbert IV Count In The Pusterthal
|                 |        |                 |         \-----Richardis
|                 |        |                 |                  \-----Liutgard
|                 |        |         /-----Engelbert II Duke Of Corinthia, Margrave Of Istria
|                 |        |        |        |         /-----Bernhard Von Flinsbach
|                 |        |        |         \-----Hedwig
|                 |        |        |                  \-----Alilia
|                 |         \-----Matilda Of Carinthia
|                 |                 |                           /-----Diepold I Count In The Augsgau
|                 |                 |                  /-----Ratpoto IV Count Of Vohburg
|                 |                 |                 |         \-----(Unk)
|                 |                 |         /-----Ulrich The Rich Count Of Passau
|                 |                 |        |        |         /-----Siegherd VII Count In Chimgau
|                 |                 |        |         \-----Mathilda Of Chimgau
|                 |                 |        |                  \-----Philhild
|                 |                  \-----Uta Of Passau
|                 |                          |                  /-----Henry Count In The Pegnitz
|                 |                          |         /-----Kuno Count Of Lechsgemund
|                 |                          |        |         \-----(Unk) WELFIN, Countess Of Altdorf
|                 |                           \-----Adelheid Countess Of Lechsgemund
|                 |                                   |         /-----Rudolf Count Of Achalm
|                 |                                    \-----Mathilde Of Achalm
|                 |                                             \-----Adelheid Of Wulflingen
|         /-----Henry II Count Of Champagne
|        |        |                                             /-----Robert II The Pious King Of France
|        |        |                                    /-----Henry I King Of France
|        |        |                                   |         \-----Constance Of Provence
|        |        |                           /-----Philip I King Of France
|        |        |                          |        |         /-----Jaroslav I Grand Prince Of Kiev
|        |        |                          |         \-----Anne Of Kiev
|        |        |                          |                  \-----Ingegard
|        |        |                  /-----Louis VI The Fat King Of France
|        |        |                 |        |                  /-----Thierri III Count Of Holland
|        |        |                 |        |         /-----Florent I Count Of Holland
|        |        |                 |        |        |         \-----Othilde Of Franconia
|        |        |                 |         \-----Bertha Of Holland
|        |        |                 |                 |         /-----Bernard II Duke Of Saxony
|        |        |                 |                  \-----Gertrude Of Saxony
|        |        |                 |                           \-----Eilika Of Schweinfurt
|        |        |         /-----Louis VII The Young King Of France
|        |        |        |        |                           /-----Otto Count Of Savoy, Marquess Of Turin
|        |        |        |        |                  /-----Amadeus II Count Of Savoy
|        |        |        |        |                 |         \-----Adelaide Markgrafin Of Susa
|        |        |        |        |         /-----Humbert II Count Of Maurienne And Savoy
|        |        |        |        |        |         \-----Adelaide
|        |        |        |         \-----Adelaide Of Savoy
|        |        |        |                 |                  /-----Raynald I Count Of Burgundy
|        |        |        |                 |         /-----William I The Great Count Of Burgundy
|        |        |        |                 |        |         \-----Alice Of Normandy
|        |        |        |                  \-----Gisele Of Burgundy
|        |        |        |                          |         /-----Berengar Raimond I Count Of Barcelona
|        |        |        |                           \-----Stephanie Of Barcelona
|        |        |        |                                    \-----Guisle Of Lluca
|        |         \-----Mary
|        |                 |                                    /-----William III Count Of Poitou, Duke Of Aquitaine
|        |                 |                           /-----William VI Geoffrey Count Of Poitou
|        |                 |                          |         \-----Agnes Of Burgundy
|        |                 |                  /-----William VII Count Of Poitou, IX Duke Of Aquitain
|        |                 |                 |        |         /-----Robert The Old Duke Of Burgundy
|        |                 |                 |         \-----Hildegarde Of Burgundy
|        |                 |                 |                  \-----Ermengarde Of Anjou
|        |                 |         /-----William VIII Count Of Poitou, Duke Of Aquitaine
|        |                 |        |        |                  /-----Pons Count Of Toulouse
|        |                 |        |        |         /-----William IV Count Of Toulouse
|        |                 |        |        |        |         \-----Adelmode De La Marche
|        |                 |        |         \-----Maud Of Toulouse
|        |                 |        |                 |         /-----Robert De Mortain, Count Of Mortain In Avranchi
|        |                 |        |                  \-----Emma De MORTAIN
|        |                 |        |                           \-----Maud De Montgomery
|        |                  \-----Eleanor Duchess Of Aquitaine
|        |                          |                           /-----Hugh De La ROCUEFOUCAUD, Vicount Of Chateller
|        |                          |                  /-----Boso II Vicount De Chastellerault
|        |                          |                 |         \-----Gergerga
|        |                          |         /-----Aimery I Vicount De Chatellerault
|        |                          |        |        |         /-----Aimery IV De THOUARS, Vicomte De Thouars
|        |                          |        |         \-----Eleanor De THOUARS
|        |                          |        |                  \-----Aurengarge De MAULEON
|        |                           \-----Eleanor De CHASTELLERAULT
|        |                                   |                  /-----Archembaud Borel Sire De Isle-Bouchard
|        |                                   |         /-----Barthelemy Sire De Isle Bouchard
|        |                                   |        |         \-----Agnes
|        |                                    \-----Dangerose
|        |                                             \-----Gerberga
\-----Philippe Of Champagne
         |                                                      /-----Fulk Count Of Perche
         |                                             /-----Hugo Of Perch
         |                                            |         \-----Melisende
         |                                    /-----Geoffrey Ferreol Count Of The Gatinais
         |                                   |        |         /-----Aubri Count Of Macon
         |                                   |         \-----Beatrix Of Macon
         |                                   |                  \-----(Unk)
         |                           /-----Fulk IV Rechin Count Of Anjou
         |                          |        |                  /-----Geoffrey I Grisgonelle Count Of Anjou
         |                          |        |         /-----Fulk III The Black Count Of Anjou
         |                          |        |        |         \-----Adele Of Troyes
         |                          |         \-----Ermengarde Of Anjou
         |                          |                  \-----Hildegarde Of Metz
         |                  /-----Fulk V The Young Count Of Anjou, King Of Jerusalem
         |                 |        |                           /-----William Count Of Hainault
         |                 |        |                  /-----Amauri III De MONTFORT
         |                 |        |                 |         \-----(Unk) Heiress Of Montfort And Epernon
         |                 |        |         /-----Simon I De MONTFORT, Seigneur Of Montfort L'Amau
         |                 |        |        |        |         /-----Guilaume De Gommetz
         |                 |        |        |         \-----Bertrade De GOMMETZ
         |                 |        |        |                  \-----Alberade
         |                 |         \-----Bertrade De MONTFORT
         |                 |                 |                  /-----Robert Count Of Evereux, Archbishop Of Rouen
         |                 |                 |         /-----Richard Count Of Evereux
         |                 |                 |        |         \-----Herleva
         |                 |                  \-----Agnes Of Evereux
         |                 |                           \-----Godehildie
         |         /-----Amalric I King Of Jerusalem
         |        |        |                                    /-----Manasses II Count Of Rethel
         |        |        |                           /-----Manasses III Count Of Rethel
         |        |        |                          |         \-----Judith Of Roucy
         |        |        |                  /-----Hugh I Count Of Rethel
         |        |        |                 |        |         /-----Giselbert Count Of Roucy
         |        |        |                 |         \-----Yevette
         |        |        |                 |                  \-----(Unk Dau)
         |        |        |         /-----Baldwin II King Of Jerusalem
         |        |        |        |        |                  /-----Milon I Seigneur De La Ferte
         |        |        |        |        |         /-----Guy Seigneur De Montchery And Bray
         |        |        |        |        |        |         \-----(Unk Dau)
         |        |        |        |         \-----Malisinde
         |        |        |        |                 |         /-----William Lord Of Burea
         |        |        |        |                  \-----Hodierna De La Ferte
         |        |         \-----Melisende
         |        |                 |         /-----Gabriel Gov Of Melitene
         |        |                  \-----Malfia
          \-----Isabella Of Anjou, Queen Of Jerusalem
                  |                                             /-----Ioannes Komnenos
                  |                                    /-----Alexis I Komnenos, Emperor Of The East
                  |                                   |         \-----Anna Dalassena
                  |                           /-----Ioannes II Komnenos Doukas, Emperor
                  |                          |        |         /-----Andronicus Doukas
                  |                          |         \-----Eirene Doukiana
                  |                          |                  \-----Maria
                  |                  /-----Andronikos Komnenos
                  |                 |        |                  /-----Bela I King Of Hungary
                  |                 |        |         /-----Ladislas I The Saint King Of Hungary
                  |                 |        |        |         \-----Rixa Of Poland
                  |                 |         \-----Irene (Pireska) Of Hungary
                  |                 |                 |         /-----Rudolf Duke Of Swabia
                  |                 |                  \-----Adelaide
                  |                 |                           \-----Adelaide Of Susa
                  |         /-----Ioannes KOMNENOS DOUKAS
                  |        |         \-----Eirene
                   \-----Maria Komnene
                           |                                    /-----Gregorios Taronites
                           |                           /-----Michael Taronites
                           |                  /-----Ioannes Taronites
                           |                 |        |         /-----Ioannes Komnenos
                           |                 |         \-----Maria Komnene
                           |                 |                  \-----Anna Dalassena
                           |         /-----Michael Taronites
                            \-----(Unk Dau) Taronitissa Komnene

Descendants of Isabeau De Brienne

1. Isabeau De Brienne m. Henry V Count Of Grandpre

m. Henry V Count Of Grandpre father: Henry IV Count Of Grandpre mother: Marie Of Garlande

2 Henri De Grandpre, Lord Of Livre m. Laure De Montfort; Laure De Montfort father: Amauri De MONTFORT, Lord Of Montfort mother: Beatrix Of Vienne

3+ Isabel De Grandpre m. Hugues IV Count Of Rethel

2nd generation

3. Isabel De Grandpre m. Hugues IV Count Of Rethel

m. Hugues IV Count Of Rethel father: Manasses IV Count Of Rethel mother: Elizabeth Of Ecry

4+ Joan Of Rethel m. Louis Of Flanders, Count Of Nevers

3rd generation

4. Joan Of Rethel m. Louis Of Flanders, Count Of Nevers

m. Louis Of Flanders, Count Of Nevers father: Robert III Count Of Flanders mother: Yolanda Of Burgundy

5+ Joan Of Flanders m. John De MONTFORT, Count Of Montfort, Duke Of

6+ Louis I Count Of Flanders m. Margaret Heiress Of Artois

4th generation

5. Joan Of Flanders m. John De MONTFORT, Count Of Montfort, Duke Of

m. John De MONTFORT, Count Of Montfort, Duke Of father: Arthur II De BRETAGNE, Duke Of Brittany mother: Yolanda Of Dreux

7 Joan De MONTFORT m. Ralph BASSET, K.G., Lord Basset Of Drayton; Ralph BASSET, K.G., Lord Basset Of Drayton father: Ralph BASSET mother: Alice AUDLEY

8+ (Unk) De MONTFORT m.

9+ John MONTFORT, K.G., Duke Of Brittany m1. Mary PLANTAGENET m2. Joan De HOLAND m3. Joan Of Navarre

10 Jeanne De MONTFORT m. Raoul BASSET

6. Louis I Count Of Flanders m. Margaret Heiress Of Artois

m. Margaret Heiress Of Artois father: Philip V King Of France And Navarre mother: Joan Of Burgundy

11+ Louis II Count Of Flanders m. Margaret Of Brabant

5th generation

8. (Unk) De MONTFORT m.

12+ (Unk Neice) m. Sir John CORNWALL

9. John MONTFORT, K.G., Duke Of Brittany m1. Mary PLANTAGENET m2. Joan De HOLAND m3. Joan Of Navarre

m. Mary PLANTAGENET father: Edward III King Of England mother: Philippa Of Hainault

m. Joan De HOLAND father: Sir Thomas De HOLAND, K.G., Earl Of Kent mother: Joan PLANTAGENET, Fair Maid Of Kent, Countess

m. Joan Of Navarre father: Charles II King Of Navarre, Count Of Evereux mother: Joan Of France

13 Arthur MONTFORT

14 Giles MONTFORT

15 Joan Of Brittany

16 Blanche Of Brittany m. John Count of Armagnac

17+ John VI Duke Of Brittany m. Jeanne Of France

18+ Maria Of Brittany m. Jean I Duke Of Alencon

19+ Marguerite Of Brittany m. Alain IX Vicount Of Rohan

20+ Richard MONTFORT, Count of Etampes m. Margaret of Orleans

11. Louis II Count Of Flanders m. Margaret Of Brabant

m. Margaret Of Brabant father: John III The Triumphant Duke Of Brabant mother: Marie Of Evereux

21+ Margaret Heiress Of Flanders m1. Philip I De Rouves Duke Of Burgundy m2. Philip The Bold Duke Of Burgundy