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


Family:
Marriage: Children:
  1. Mathilda Of Burgundy, Countess Of Grignon Birth: Abt 1150 Death: 1192 in Fontevrault

Marriage: Children:
  1. Guichard IV The Great Sire De Beaujeu Death: 27 Sep 1216

Bibliography
  1. Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. II: Die Ausserdeutschen Staaten Die Regierenden Hauser der Ubrigen Staaten Europas. Marburg: Verlag von J. A. Stargardt, 1984. Information from this source tagged as [Ref: ES II #[0-9]*].
  2. Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. III.3 (#401-#600): Andere Grosse Eurpaische Familien, Illegitime Nachkommen Spanischer und Portugiesischer Konigshauser. Marburg: Verlag von J. A. Stargardt, 1985. Information from this source tagged as [Ref: ES III.3 #[0-9]*].
  3. 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]*].
  4. Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. XI: Familien vom Mittle- und Oberrhein und aus Burgund. Marburg: Verlag von J. A. Stargardt, 1986. Information from this source tagged as [Ref: ES XI #[0-9]*].
  5. 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]*].

Sources for birth and parent Information
father:
[Ref: ES II #20, ES III.3 #433, Richardson RoyalAnc v2p469]
Sources with Information about marriage to Raymond Of Burgundy, Count Of Grignon
date:
first marriage of Agnes [Ref: ES XI #156]
um 1145 [Ref: ES II #20]
um 1146 [Ref: ES III.3 #433],
child:
[Ref: ES II #20, ES III.4 #717, Richardson RoyalAnc v2p469]
Sources with Information about marriage to Humbert IV Of Beaujeu
date:
um 1160 [Ref: ES II #20, ES III.3 #433]
um 1160, as second marriage of Agnes [Ref: ES XI #156],
child:
[Ref: ES XI #156]
Research Notes:



Pedigree of Agnes Of Thiern
                   /-----Guillaume Of Thiern
          /-----Guy De Thiern, Count Of Chalon
         |        |                                             /-----Froilan De Semur, Seigneur De Semur
         |        |                                    /-----Joceran Seigneur De Semur
         |        |                           /-----Geoffrey I Seigneur De Semur
         |        |                          |         \-----Ricosire
         |        |                  /-----Geoffrey II Seigneur De Semur
         |        |         /-----Thibaud Count Of Chalons
         |        |        |        |                  /-----Robert Vicomte Of Dijon, Count Of Auton
         |        |        |        |         /-----Lambert Count Of Chalons, Viconte Of Dijon
         |        |        |        |        |         \-----Engeltrude
         |        |        |         \-----Mahaut Heiress Of Chalons
         |        |        |                  \-----Adelaide Heiress of Chalons
         |         \-----Adelaide Of Chalon
         |                  \-----Ermentrude
 /-----Guy Lord Of Montpensier
Agnes Of Thiern



Descendants of Agnes Of Thiern
1. Agnes Of Thiern m1. Raymond Of Burgundy, Count Of Grignon m2. Humbert IV Of Beaujeu
m. Raymond Of Burgundy, Count Of Grignon father: Hugh II Duke Of Burgundy mother: Mechtild Of Mayenne
m. Humbert IV Of Beaujeu father: Humbert III Of Beaujeu mother: Alix/Elsa Of Savoy

2nd generation

2. Mathilda Of Burgundy, Countess Of Grignon m1. Eudes III De Isoudun m2. Guy I Count Of Nevers D'Auxerre m3. Peter Of Flanders, Count Of Nevers m4. Robert II Count Of Dreux
m. Eudes III De Isoudun
m. Guy I Count Of Nevers D'Auxerre father: William III Count Of Nevers D'Auxerre mother: Ida Of Karnten
m. Peter Of Flanders, Count Of Nevers father: Thierry Of Lorraine, Count Of Flanders mother: Sybil Of Anjou
m. Robert II Count Of Dreux father: Robert I Count Of Dreux mother: Agnes De Baudemont
3. Guichard IV The Great Sire De Beaujeu m. Sibylle Of Flanders
m. Sibylle Of Flanders father: Baldwin V Count Of Hainaut And Namur mother: Margarite Of Lorraine, Heiress Of Flanders

3rd generation

4. Agnes Countess Of Nevers m. Peter De COURTENAY, Emperor Of Constantinople
m. Peter De COURTENAY, Emperor Of Constantinople father: Peter Of France, Lord Of Courteney mother: Elizabeth De Courtenay
5. Sybille Of Flanders m. Robert I Seneschall Of Flanders
m. Robert I Seneschall Of Flanders father: Hellin I Of Wavrin, Seneschall Of Flanders mother: Tirsella Of Arras
6. Agnes De Beaujeu m. Theobald I King Of Navarre
m. Theobald I King Of Navarre father: Theobald III Count Of Champagne mother: Blanche Of Navarre
7. Humbert Lord Of Beaujeu m. Marguerite Of Miribel
m. Marguerite Of Miribel father: Guy I Lord Of Bauge And Miribel
8. Guichard II Lord Of Montpensier m. Catherine Dauphine Of Clermont
m. Catherine Dauphine Of Clermont father: Guillaume II Count Of Clermont mother: Isabeau Of Montlucon
9. Sibylle Of Beaujeu m1. Raynold IV Lord Of Bauge And Bresse m2. Pierre The Great Of Brancion, Lord Of Visargent
m. Raynold IV Lord Of Bauge And Bresse father: Ulric II Lord Of Bauge And Bresse mother: Alexandrine Of Vienne
m. Pierre The Great Of Brancion, Lord Of Visargent

4th generation

10. Mahaut De Courtenay m1. Herve IV Count Of Donzy m2. Guy IV Count Of Forez
m. Herve IV Count Of Donzy father: Herve III Count Of Donzy mother: Mathilde GOUET
m. Guy IV Count Of Forez father: Guy III Count Of Forez mother: Adalasia
11. Hellin II Seneschall Of Flanders m. Elizabeth Of Montmirail
m. Elizabeth Of Montmirail father: John Seigneur De Montmirel mother: Helvide Of Dampierre
12. Blanche Of Navarre m. John Le Roux De BRETAGNE, Duke Of Brittany
m. John Le Roux De BRETAGNE, Duke Of Brittany father: Pierre De DREUX, Count Of Brittany mother: Alix De THOUARS, Duchess Of Brittany
13. Sibylle De Beaujeu m. Aymar III Of Poitiers Count Of Valentinois
m. Aymar III Of Poitiers Count Of Valentinois father: Guillaume II Count Of Valentinois mother: Flotte De Royans
14. Elisabeth/Isabelle Of Beaujeu m. Renaud Count Of Forez
m. Renaud Count Of Forez father: Guy IV Count Of Forez mother: Mahaut De Courtenay
15. Humbert II Lord Of Montpensier m. Isabelle De Mello
m. Isabelle De Mello father: Guillaume De Mello
16. Guy Of Bauge, Lord Of Beaujeu And Bresse m. Beatrix Of Montferrat
m. Beatrix Of Montferrat father: William VI Margrave Of Montferrat mother: Berta De Clavesana

5th generation

17. Agnes Of Donzy m. Guy I Count Of St. Pol
m. Guy I Count Of St. Pol father: Gaucher III Count Of St. Pol mother: Elizabeth Countess Of St. Pol
20. Renaud Count Of Forez m. Elisabeth/Isabelle Of Beaujeu
m. Elisabeth/Isabelle Of Beaujeu father: Humbert Lord Of Beaujeu mother: Marguerite Of Miribel
21. Robert II Of Wavrin, Seneschall Of Flanders m1. Eustache Of Chatillon m2. Mathilde Of Bethune
m. Eustache Of Chatillon father: Gaucher III Count Of St. Pol mother: Elizabeth Countess Of St. Pol
m. Mathilde Of Bethune father: Guillaume III Lord Of Meulebeeke mother: Elisabeth Of Roosbrugge
23. John De BRETAGNE, Duke Of Brittany m. Beatrice
m. Beatrice father: Henry III King Of England mother: Eleanor Of Provence
25. Alix De BRETAGNE m. John I Count Of Blois
m. John I Count Of Blois father: Hugh Of Chatillon, Count Of Blois mother: Mary Of Avesnes, Countess Of Blois
31. Aymar IV Count Of Valentinois m. Marguerite Of Geneva
m. Marguerite Of Geneva father: Raoul Count Of Geneva mother: Marie Of Coligny
32. Guy VI Count Of Forez m. Jeanne De Montfort
m. Jeanne De Montfort father: Philippe II Lord Of Castres And Ferte-Alias mother: Jeanne Of Levis
33. Louis I Lord Of Beaujeu m. Eleanor Of Savoy
m. Eleanor Of Savoy father: Thomas II Of Savoy, Count Of Hainault mother: Beatrix Di FIESCO
34. Jeanne Of Beaujeu, Dame De Montpensier m. Jean II Le Bon Count Of Dreux, Braine, Montfort, And Jo
m. Jean II Le Bon Count Of Dreux, Braine, Montfort, And Jo father: Robert IV Count Of Dreux mother: Beatrix Of Montfort
35. Sibylle De Bauge m. Amadeus V Count Of Savoy
m. Amadeus V Count Of Savoy father: Thomas II Of Savoy, Count Of Hainault mother: Beatrix Di FIESCO