Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 09-30-2024.

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 Of Dreux
Sex: F
Birth: 1264 ^b
Death: 29 Apr 1300 ^d

Parents:

Father:
Robert I Of Dreux, Lord Of Beu Birth: Abt 1217 Death: 1265

Mother:

Isabeau Of Villeboon Death: Before 1282

Family:
Marriage:

Gaucher V Of Chatillon, Count Of Porcien on 1276 .^m1
Gaucher V Of Chatillon, Count Of Porcien Birth: Abt 1249 Death: 1329

Children:

Marie Of Chatillon Death: After 18 Apr 1318
Jeanne Of Chatillon Death: 16 Jan 1354/5
Gaucher II Count Of Porcean Death: 25 Aug 1325
Jean Of Chatillon, Senigneur of Chatillon
Isabelle Of Chatillon
Hugues De Chatillon, Lord Of Rozoy Birth: Abt 1300 Death: Aug 1336

Bibliography

Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. III.1 (#1-#200): Herzogs und Grafenhauser des Heiligen Romischen Reiches Andere Europaische Furstenhauser. Marburg: Verlag von J. A. Stargardt, 1984. Information from this source tagged as [Ref: ES III.1 #[0-9]*].
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]*].
Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v2p[0-9]*].
Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v3p[0-9]*].
Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v5p[0-9]*].

Sources for birth and parent Information

date:: [Ref: ES III.1 #64, ES VII #19, Richardson RoyalAnc v2p471],
parents:: [Ref: ES III.1 #64, Richardson RoyalAnc v2p471],
father:: [Ref: ES VII #19, Richardson RoyalAnc v3p409]

Sources for death Information

date:: [Ref: ES III.1 #64, Richardson RoyalAnc v2p471]; 19.IV 1300 [Ref: ES VII #19]

Sources with Information about marriage to Gaucher V Of Chatillon, Count Of Porcien

date:: [Ref: ES VII #19]; 1276/81 [Ref: ES III.1 #64, Richardson RoyalAnc v2p471]; first marriage of Gautier [Ref: Richardson RoyalAnc v5p419],
child:: [Ref: ES III.4 #682, ES VII #19, Richardson RoyalAnc v2p471, Richardson RoyalAnc v2p472, Richardson RoyalAnc v3p409]

Sources with Inaccurate marriage information

child:: Guy (#178300) [Ref: ES VII #19]

Research Notes:
Lady of Nesle-en-Tardenois [Ref: Richardson RoyalAnc v2p471]

Pedigree of Isabeau Of Dreux
                                                                /-----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
                            /-----Robert I Count Of Dreux
                           |        |                           /-----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
                   /-----Robert II Count Of Dreux
                  |        |                  /-----Andre Seigneur De Baudmont
                  |        |         /-----Gui Seigneur De Baudmont And Braine
                  |        |        |         \-----Agnes Heiress Of Braine
                  |         \-----Agnes De Baudemont
                  |                  \-----Adelaide
          /-----Robert III Count Of Dreux
         |        |                                             /-----Dreux De BOVES
         |        |                                    /-----Enguerrand I De COUCY, Count Of Amiens
         |        |                                   |         \-----Adele De Coucy
         |        |                           /-----Thomas De COUCY, Count Of Anvers
         |        |                          |        |         /-----Lutaud Seigneur De Marle
         |        |                          |         \-----Ade De ROUCY, Dame De Marle
         |        |                          |                  \-----Mathilde
         |        |                  /-----Enguerrand II Sire De COUCY
         |        |                 |        |         /-----Guy De CRECY En LAONNOIS
         |        |                 |         \-----Melisende De CRECY En LAONNOIS
         |        |         /-----Ralph I Sire De COUCY
         |        |        |        |                           /-----Lancellin I Sire De Baugency In Orleanais
         |        |        |        |                  /-----Lanzelin II Seigneur De Baugency
         |        |        |        |         /-----Ralph Seigneur De BAUGENCI
         |        |        |        |        |         \-----Alberga
         |        |        |         \-----Agnes De BAUGENCI
         |        |        |                 |                  /-----Henry I King Of France
         |        |        |                 |         /-----Hugh Magnus Duke Of France
         |        |        |                 |        |         \-----Anne Of Kiev
         |        |        |                  \-----Matilda Of Vermandois
         |        |        |                          |         /-----Herbert IV Count Of Vermandois
         |        |        |                           \-----Adelaide De Vermandois, Countess Of Vermandois
         |        |        |                                    \-----Adela De Valois
         |         \-----Yolande De COUCY
         |                 |                                    /-----Baldwin VI De MONS, Count Of Flanders
         |                 |                           /-----Baldwin II Count Of Hainault
         |                 |                          |         \-----Richilde Countess Of Hainault
         |                 |                  /-----Baldwin III Count Of Hainault
         |                 |                 |        |         /-----Henry II Of Brabant, Count Of Lorraine
         |                 |                 |         \-----Ida Of Louvain
         |                 |                 |                  \-----Adelaide Of Betuew
         |                 |         /-----Baldwin IV Count Of Hainault
         |                 |        |        |                  /-----Dietrich Flameus Count In The Velux
         |                 |        |        |         /-----Gerald I Count Of Guelders And Wassenberg
         |                 |        |         \-----Yolande Of Guelders
         |                  \-----Agnes Of Hainault
         |                          |                           /-----Albert II Count Of Namur
         |                          |                  /-----Albert III Count Of Namur
         |                          |                 |         \-----Regilinde Of Lorraine
         |                          |         /-----Godfrey Count Of Namur
         |                          |        |        |         /-----Bernard II Duke Of Saxony
         |                          |        |         \-----Ida Of Saxony
         |                          |        |                  \-----Eilika Of Schweinfurt
         |                           \-----Alix De NAMUR
         |                                   |                  /-----Giselbert Count Of Luxembourg
         |                                   |         /-----Conrad I Count Of Luxembourg
         |                                    \-----Ermesinde
         |                                            |         /-----William V Peter Count Of Poitou, Duke Of Aquitaine
         |                                             \-----Clementia Of Poitou
         |                                                      \-----Emisinde Of Longwy
/-----Robert I Of Dreux, Lord Of Beu
|        |                                                      /-----Bernard De St. Valerie
|        |                                             /-----Walter De St VALERY
|        |                                    /-----Bernard De St VALERY
|        |                                   |        |         /-----(Unk) De MONTHERY
|        |                                   |         \-----Elizabeth De MONTHERY
|        |                           /-----Reginald De St VALERY, Baron Of Beckley
|        |                          |         \-----Matilda
|        |                  /-----Bernard De St VALERY, Baron Of Beckley
|        |         /-----Thomas De St VALERY, Baron Of Beckley
|        |        |         \-----Matilda
|         \-----Aenor Of St Valery
|                 |                                             /-----Roger De Montgomery, Earl Of Shrewsbury
|                 |                                    /-----Robert II De Belesme, Count Of Alencon
|                 |                                   |         \-----Mabel De Belesme
|                 |                           /-----William III TALVAS, Count Of Alencon And Ponthieu
|                 |                          |        |         /-----Guy I Count Of Ponthieu
|                 |                          |         \-----Agnes Of Ponthieu
|                 |                          |                  \-----Ada
|                 |                  /-----Guy II De PONTHIEU, Count Of Ponthieu
|                 |                 |        |                  /-----Henry Of Burgundy
|                 |                 |        |         /-----Eudes I Borrel Duke Of Burgundy
|                 |                 |        |        |         \-----(Unk) Of Barcelona
|                 |                 |         \-----Helie/Alice Of Burgandy
|                 |                 |                 |         /-----William I The Great Count Of Burgundy
|                 |                 |                  \-----Matilda (Sibylle) Of Burgundy
|                 |                 |                           \-----Stephanie Of Barcelona
|                 |         /-----John I De PONTHIEU, Count Of Ponthieu
|                 |        |         \-----Ida
|                  \-----Adele De PONTHIEU
|                           \-----Matilda
Isabeau Of Dreux
|                                    /-----Gautier I Of Villebon, Grand Chamberlain Of France
|                           /-----Gautier II Lord Of Villebon
|                          |        |         /-----Orson Of Nemours
|                          |         \-----Aveline Of Nemours
|                          |                  \-----Aveline Of Treuzy
|                  /-----Adam I Lord Of Villebon
|                 |         \-----Elizabeth Of Mondreville
|         /-----Adam II Of Chatillon-Villebon
|        |        |         /-----Guillaume Of Tancarville
|        |         \-----Elizabeth Of Tancarville
|        |                  \-----Alix Of Serans
\-----Isabeau Of Villeboon
         |                                                      /-----Gilbert Of Garlande, Butler Of France
         |                                             /-----Gui Of Garlande, Lord Of Tournan
         |                                            |         \-----Eustachie Countess
         |                                    /-----Anseau I Lord Of Tournan
         |                           /-----Anseau II Lord Of Tournan And Possesse
         |                          |         \-----Rancie
         |                  /-----Anseau III Lord Of Tournan And Possesse
         |                 |         \-----Sophie
         |         /-----Robert Of Garlande
         |        |         \-----Aelidis
          \-----Alix Of Garlande
                   \-----Alix Of Rumigny

Descendants of Isabeau Of Dreux

1. Isabeau Of Dreux m. Gaucher V Of Chatillon, Count Of Porcien

m. Gaucher V Of Chatillon, Count Of Porcien father: Gaucher IV Lord Of Chatillon mother: Isabelle Of Villehardouin

2+ Marie Of Chatillon m. Guichard VI The Great Of Beaujeu

3+ Jeanne Of Chatillon m. Gautier V Count Of Brienne, Duke Of Athens

4+ Gaucher II Count Of Porcean m. Marguerite Of Dampierre

5 Jean Of Chatillon, Senigneur of Chatillon

6 Isabelle Of Chatillon

7+ Hugues De Chatillon, Lord Of Rozoy m. Marie De Clacy

2nd generation

2. Marie Of Chatillon m. Guichard VI The Great Of Beaujeu

m. Guichard VI The Great Of Beaujeu father: Louis I Lord Of Beaujeu mother: Eleanor Of Savoy

8+ Eduard Of Beaujeu m. Marie Of Thil

3. Jeanne Of Chatillon m. Gautier V Count Of Brienne, Duke Of Athens

m. Gautier V Count Of Brienne, Duke Of Athens father: Hugues Count Of Brienne mother: Isabelle Of Roche-Sur-L'Ognon

9+ Isabeau Of Brienne m. Walter III Lord Of Enghein

10 Gautier VI De BRIENNE, Duke Of Athens m. Jehanne De BRIENNE; Jehanne De BRIENNE father: Raoul I De BRIENNE, Count Of Eu mother: Jeanne Of Mello

4. Gaucher II Count Of Porcean m. Marguerite Of Dampierre

m. Marguerite Of Dampierre father: Jean II Lord Of Dampierre And Saint-Dizier mother: Marguerite De BRIENNE

11+ Gaucher III Count Of Porcean m. Jeanne De Conflans

7. Hugues De Chatillon, Lord Of Rozoy m. Marie De Clacy

m. Marie De Clacy

12+ Sir Gaucher De Chatillon, Lord Of Rozoy m. Marie De Coucy

3rd generation

8. Eduard Of Beaujeu m. Marie Of Thil

m. Marie Of Thil father: Jean I Lord Of Thil mother: Agnes Of Frolois, Dame Of Vezinnes

13+ Marguerite Of Beaujeu m. Jakob Prince Of Achaja

9. Isabeau Of Brienne m. Walter III Lord Of Enghein

m. Walter III Lord Of Enghein father: Walter II Of Enghein mother: Jolande Of Flanders

14 Gautier Of Enghein

15 Sohier Of Enghein, Duke of Athens

16 Jean Of Enghein, Count of Lecce

17+ Louis Of Enghien, Count Of Brienne, Duke Of At m. Giovanna Of Sanserverino

18 Jacques Of Enghein

19 Guy Of Enghein

20 Englebert Of Enghein

21 Isabeau Of Enghein

22 Marguerite Of Enghein m. Pierre De PREAUX

23 Francoise Of Enghein m. Pietro Count of Montebello

24 Jeanne Of Enghein

25 (Unk) Of Enghein

11. Gaucher III Count Of Porcean m. Jeanne De Conflans

m. Jeanne De Conflans

26 Jeanne De Chatillon m. Robert VIII De Bethune, Vicount Of Meaux; Robert VIII De Bethune, Vicount Of Meaux father: Jean I De BETHUNE mother: Jeanne De Coucy

12. Sir Gaucher De Chatillon, Lord Of Rozoy m. Marie De Coucy

m. Marie De Coucy father: Enguerrand De Coucy, Vicount Of Meaux mother: Marie Of Vianden

27+ Jeanne De Chatillon m. Pierre De CRAON, Sn De La Ferte-Bernard

4th generation

13. Marguerite Of Beaujeu m. Jakob Prince Of Achaja

m. Jakob Prince Of Achaja father: Philip Of Savoy, Count Of Piedmont, Count Of Al mother: Isabelle (Zampea) De Villehardouin

28+ Amadeus Prince Of Achaja m. Katharina Of Geneva

17. Louis Of Enghien, Count Of Brienne, Duke Of At m. Giovanna Of Sanserverino

m. Giovanna Of Sanserverino father: Antonio Of Sanserverino, Count Of Marsico mother: Isabeau Of Baux

29+ Marguerite De Enghien m1. Pierre Of Baux m2. Jacopo SANSEVERINO m3. Jean II Count Of Brienne And Conversano

30 Antoine Of Enghein

31 Yolande Of Enghein m. Philippe De BAR

32 Isabeau Of Enghein m. Guillaume De GAVRE

33 Helene Of Enghein m. Pierre De Assignics, Seneschal of Provence

27. Jeanne De Chatillon m. Pierre De CRAON, Sn De La Ferte-Bernard

m. Pierre De CRAON, Sn De La Ferte-Bernard father: Guillaume De CRAON, Vicount Of Chateaudun mother: Marguerite Of Flanders, Vicountess Of Chateaudun

34+ Jeanne De CRAON m1. Ingerger De AMBOISE, Sn De La Rochecorbon m2. Pierre De Beauvau, Sire De La Roche-Sur-Yon

5th generation

28. Amadeus Prince Of Achaja m. Katharina Of Geneva

m. Katharina Of Geneva father: Amadeus III Count Of Geneva mother: Mahaut Of Bologne

35 Mathilde Of Savoy m. Louis III The Bearded Elector Palatine; Louis III The Bearded Elector Palatine father: Rupert III Pfalzgraf Of Rhein, Emperor mother: Elizabeth Of Nurnberg

29. Marguerite De Enghien m1. Pierre Of Baux m2. Jacopo SANSEVERINO m3. Jean II Count Of Brienne And Conversano

m. Pierre Of Baux

m. Jacopo SANSEVERINO

m. Jean II Count Of Brienne And Conversano father: Guy Count Of Ligny, And St. Pol mother: Mathilde Of Chatillion

36 Jean III Of Luxemburg, Count Of Ligny And Guise m. Jeanne Of Bethune; Jeanne Of Bethune father: Robert VIII De Bethune, Vicount Of Meaux mother: Isabelle De Ghistelles

37 Louis Of Luxemburg

38 Catherine Of Luxemburg

39 Jeanne Of Luxemburg m1. Louis De Ghistelles m2. Jean Vicomte of Melun

40+ Peter Of Luxemburg, Count Of St. Pol m. Margaret Of Andria

34. Jeanne De CRAON m1. Ingerger De AMBOISE, Sn De La Rochecorbon m2. Pierre De Beauvau, Sire De La Roche-Sur-Yon

m. Ingerger De AMBOISE, Sn De La Rochecorbon

41 Jacqueline De AMBOISE m. Jean Seigneur De La Tremoille

m. Pierre De Beauvau, Sire De La Roche-Sur-Yon father: Jean De Beauvau, Governor Of Tarent mother: Jeanne Of Tigny

42+ Louis De Beauvau, Sire De La Roche-Sur-Yon m. Marguerite De Chambley