Genealogy of the Marshall Family,
including Medieval and Ancient Lines

Updated: 12-10-2023.

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 may be downloaded here.

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

Individual Page

Person Info

Name: Guy XIV Count Of Laval
Sex: M
Birth: 1407 ^b
Death: 2 Sep 1486 in Chateaubriant ^d
Burial: Laval ^u

Parents:

Father:
Jean Guy XIII Of Montfort, Lord Of Kergolay Birth: Abt 1385 Death: 12 Aug 1414 in Rhodes

Mother:

Anne Dame Of Laval Birth: Abt 1385 Death: 25 Jan 1465/6 in Vitre

Family:
Marriage:

Isabeau Of Bretagne on 1 Oct 1430 at Redon .^m1
Isabeau Of Bretagne Death: 14 Jan 1443 in Auray

Children:

Louise De Laval
Jeanne De Laval Birth: 10 Nov 1433 in Auray Death: 19 Dec 1498 in Chateau De Beaufort

Bibliography

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]*].
Schwennicke, Detlev, ed., Europaische Stammtafeln: Stammtafeln zur Geschichte der europaischen Staaten, New Series. XIV: Les Familles Feodales de France II. Marburg: Verlag von J. A. Stargardt, 1991. Information from this source tagged as [Ref: ES XIV #[0-9]*].
Roberts, Gary Boyd, The Royal Descents of 600 Immigrants to the American Colonies or the United States: who were themselves notable or left descendants notable in American history, with a 2008 Addendum, Coda, and Final Additions. Baltimore, MD: Gen Pub Co, 2008. NYPL APK 08-4216. Information from this source tagged as [Ref: Roberts RD600 p[0-9]*].

Sources for birth and parent Information

date:: [Ref: ES XIV #145],
parents:: [Ref: ES XIV #145]

Sources for death Information

date:: [Ref: ES XIV #145],
place:: [Ref: ES XIV #145]

Sources for burial Information

place:: [Ref: ES XIV #145]

Sources with Information about marriage to Isabeau Of Bretagne

date:: [Ref: ES XIV #145],
place:: [Ref: ES XIV #145],
child:: [Ref: ES XIV #136, Roberts RD600 p106]

Research Notes:
Count of Laval [Ref: ES II #26, Roberts RD600 p106]

1429: Sn de Gavre [Ref: ES XIV #145]

1466: Sire de laval et de Vitre [Ref: ES XIV #145]

Pedigree of Guy XIV Count Of Laval
                            /-----Raoul VII Of Montfort
                   /-----Raoul VII Of Montfort
                  |         \-----Alienor De Ancienis
          /-----Raoul VIII Lord Of Montfort-La-Cane
         |        |         /-----Jean-Eon Of Roche-Bernard
         |         \-----Isabeau Of Lobeac, Dame De Roche-Bernard
         |                 |                                    /-----Amaury I De CRAON, Sire De Craon
         |                 |                           /-----Maurice IV Sire De Craon, Seneschal Of Anjou
         |                 |                          |         \-----Jeanne De Roches
         |                 |                  /-----Maurice Of Craon, Sire De Craon And Sable
         |                 |                 |        |         /-----Hugh X De Lusignan, Count Of La Marche
         |                 |                 |         \-----Isabelle De Lusignan
         |                 |                 |                  \-----Isabel Of Angouleme
         |                 |         /-----Amaury III Of Craon, Sire De Craon And Sable
         |                 |        |        |                  /-----Walter VI Berthout Lord Of Mecheln
         |                 |        |        |         /-----Walter VII The Great Lord Of Mecheln
         |                 |        |        |        |         \-----Adelive Of Enghien
         |                 |        |         \-----Mathilde Of Mecheln
         |                 |        |                 |         /-----Guillaume IX Count Of Auvergne
         |                 |        |                  \-----Marie Of Auvergne
         |                 |        |                           \-----Aleidis Of Brabant
         |                  \-----Beatrix Of Craon
         |                          |                           /-----Jean II Count Of Roucy, Lord Of Pierrepont
         |                          |                  /-----Jean III Count Of Roucy, Lord Of Pierrepont
         |                          |                 |         \-----Marie Of Dammartin
         |                          |         /-----Jean IV Count Of Roucy, Lord Of Pierpont
         |                          |        |        |         /-----Beraud VI The Great Lord Of Mercoeur
         |                          |        |         \-----Isabelle Of Mercoeur
         |                          |        |                  \-----Beatrix Of Bourbon
         |                           \-----Beatrix De Roucy
         |                                   |                  /-----John I Count Of Dreux
         |                                   |         /-----Robert IV Count Of Dreux
         |                                   |        |         \-----Maria Of Bourbon
         |                                    \-----Jeanne Of Dreux
         |                                            |         /-----John I Count Of Montfort-L'Aumari
         |                                             \-----Beatrix Of Montfort
         |                                                      \-----Jeanne Dame De Chateau Du Loir
/-----Jean Guy XIII Of Montfort, Lord Of Kergolay
|        |                  /-----Jean II Sire De Kergorlay
|        |         /-----Jean Sire De Kergorlay
|        |        |         \-----Jeanne of Rieux
|         \-----Jeanne Of Kergorlay
|                 |                  /-----Herve VI De Leon, Sire Of Noyon-Sur-Andelle
|                 |         /-----Herve De Leon, Sire Of Noyon-Sur-Andelle
|                 |        |         \-----Jeanne De Montmorency
|                  \-----Marie De Leon
|                          |         /-----Henry IV De BRETAGNE, Signeur De Avaugour
|                           \-----Marguerite De Avaugour
|                                   |         /-----Jean II Sire De Harcourt
|                                    \-----Jeanne De HARCOURT, Dame De L'Aigle
|                                            |                  /-----Hugh II Vicount Of Chatellerault
|                                            |         /-----Aimeri II Viscount Of Chatellerault
|                                            |        |         \-----Alice Of Alencon
|                                             \-----Jeanne Vcts De Chatellerault
|                                                     |         /-----Simon De DAMMARTIN, Count Of Aumale
|                                                      \-----Agatha De DAMMARTIN
|                                                               \-----Marie Countess Of Ponthieu
Guy XIV Count Of Laval
|                                                               /-----Bouchard De MONTMORENCY
|                                                      /-----Matthew II Sire De Montmorency
|                                                     |         \-----Lauretia Of Hainault
|                                             /-----Guy VII Lord Of Laval
|                                            |        |         /-----Guy VI Lord Of Laval
|                                            |         \-----Emma Of Laval
|                                            |                  \-----Avoise Of Craon
|                                    /-----Guy VIII Lord Of Vitre And Laval
|                                   |        |                  /-----Andre II Lord Of Vitre
|                                   |        |         /-----Andre III Lord Of Vitre And Combourg
|                                   |        |        |         \-----Eustachie Of Rays
|                                   |         \-----Philippa Of Vitre
|                                   |                 |         /-----Gui De THOUARS, Count Of Brittany
|                                   |                  \-----Catherine Of Thouars
|                                   |                           \-----Constance Countess Of Brittany
|                           /-----Guy IX Lord Of Vitre And Laval
|                          |        |                           /-----Adam Lord Of Beaumont-En-Gatinais
|                          |        |                  /-----John I Lord Of Villemomble
|                          |        |                 |         \-----Alix Of Athis
|                          |        |         /-----Guillaume Lord Of Villemomble
|                          |        |        |         \-----Agnes Of Clignancourt
|                          |         \-----Isabelle De Beaumont
|                          |                  \-----Jeanne Of Acquigny
|                  /-----Guy X Lord Of Vitre And Laval
|                 |        |                                    /-----Rasso V Lord Of Gavere
|                 |        |                           /-----Rasso Lord Of Chievres
|                 |        |                          |         \-----Clarissia Of Eksaerde
|                 |        |                  /-----Rasso VII Lord Of Gavre And Chievres
|                 |        |                 |        |         /-----Nikolaus Of Boulaere
|                 |        |                 |         \-----Alice Of Boulaere
|                 |        |                 |                  \-----Ada Of Roeulx
|                 |        |         /-----Rasso VIII Lord Of Gavre And Chievres
|                 |        |        |        |                  /-----Hellin II Seneschall Of Flanders
|                 |        |        |        |         /-----Robert II Of Wavrin, Seneschall Of Flanders
|                 |        |        |        |        |         \-----Elizabeth Of Montmirail
|                 |        |        |         \-----Jeanne Of Wavrin
|                 |        |        |                 |         /-----Guillaume III Lord Of Meulebeeke
|                 |        |        |                  \-----Mathilde Of Bethune
|                 |        |        |                           \-----Elisabeth Of Roosbrugge
|                 |         \-----Beatrix Of Gavre
|                 |                  \-----Beatrix Of Strijen
|         /-----Jean Guy XII Lord Of Laval
|        |        |                                             /-----Robert II Count Of Dreux
|        |        |                                    /-----Pierre De DREUX, Count Of Brittany
|        |        |                                   |         \-----Yolande De COUCY
|        |        |                           /-----John Le Roux De BRETAGNE, Duke Of Brittany
|        |        |                          |        |         /-----Gui De THOUARS, Count Of Brittany
|        |        |                          |         \-----Alix De THOUARS, Duchess Of Brittany
|        |        |                          |                  \-----Constance Countess Of Brittany
|        |        |                  /-----John De BRETAGNE, Duke Of Brittany
|        |        |                 |        |                  /-----Theobald III Count Of Champagne
|        |        |                 |        |         /-----Theobald I King Of Navarre
|        |        |                 |        |        |         \-----Blanche Of Navarre
|        |        |                 |         \-----Blanche Of Navarre
|        |        |                 |                 |         /-----Guichard IV The Great Sire De Beaujeu
|        |        |                 |                  \-----Agnes De Beaujeu
|        |        |                 |                           \-----Sibylle Of Flanders
|        |        |         /-----Arthur II De BRETAGNE, Duke Of Brittany
|        |        |        |        |                           /-----Henry II Curt Mantel PLANTAGENET, King Of England
|        |        |        |        |                  /-----John Lackland PLANTAGENET, King Of England
|        |        |        |        |                 |         \-----Eleanor Duchess Of Aquitaine
|        |        |        |        |         /-----Henry III King Of England
|        |        |        |        |        |        |         /-----Aymer Tailefer, Count Of Angouleme
|        |        |        |        |        |         \-----Isabel Of Angouleme
|        |        |        |        |        |                  \-----Alice De Courtenay
|        |        |        |         \-----Beatrice
|        |        |        |                 |                  /-----Alfonso II Count Of Provence
|        |        |        |                 |         /-----Raymond Berengar IV Count Of Provence And Forcalquier
|        |        |        |                 |        |         \-----Gersenda II Of Sabran
|        |        |        |                  \-----Eleanor Of Provence
|        |        |        |                          |         /-----Thomas I Count Of Savoy
|        |        |        |                           \-----Beatrice Of Savoy
|        |        |        |                                    \-----Margaret Of Geneva
|        |         \-----Beatrix Dame De Hede
|        |                 |                                    /-----Robert II Count Of Dreux
|        |                 |                           /-----Robert III Count Of Dreux
|        |                 |                          |         \-----Yolande De COUCY
|        |                 |                  /-----John I Count Of Dreux
|        |                 |                 |        |         /-----Thomas De St VALERY, Baron Of Beckley
|        |                 |                 |         \-----Aenor Of St Valery
|        |                 |                 |                  \-----Adele De PONTHIEU
|        |                 |         /-----Robert IV Count Of Dreux
|        |                 |        |        |                  /-----Guy II Seigneur De Dampierre
|        |                 |        |        |         /-----Archambaud IX De DAMPIERRE, Seigneur De Bourbon
|        |                 |        |        |        |         \-----Matilda De BOURBON, Dame De Bourbon
|        |                 |        |         \-----Maria Of Bourbon
|        |                 |        |                 |         /-----Archambaud Seigneur De Montlucon
|        |                 |        |                  \-----Beatrix De MONTHUCON
|        |                  \-----Yolanda Of Dreux
|        |                          |                           /-----Simon IV De MONTFORT L'AUMARY
|        |                          |                  /-----Amauri De MONTFORT, Lord Of Montfort
|        |                          |                 |         \-----Alix De MONTMORENCY
|        |                          |         /-----John I Count Of Montfort-L'Aumari
|        |                          |        |        |         /-----Andre Guigues VI Count Of Viennois And Albon
|        |                          |        |         \-----Beatrix Of Vienne
|        |                          |        |                  \-----Beatrice De Sabran
|        |                           \-----Beatrix Of Montfort
|        |                                   |                  /-----Geoffroy V Vicount Of Chateaudun
|        |                                   |         /-----Geoffrey VI Vicomte De Chateaudun
|        |                                   |        |         \-----Adele Of Nevers
|        |                                    \-----Jeanne Dame De Chateau Du Loir
|        |                                            |         /-----William Of Roches, Seneschall Of Anjou
|        |                                             \-----Clemence Of Roches
|        |                                                      \-----Marguerite Dame Of Sable
\-----Anne Dame Of Laval
         |                                                      /-----Bouchard De MONTMORENCY
         |                                             /-----Matthew II Sire De Montmorency
         |                                            |         \-----Lauretia Of Hainault
         |                                    /-----Guy VII Lord Of Laval
         |                                   |        |         /-----Guy VI Lord Of Laval
         |                                   |         \-----Emma Of Laval
         |                                   |                  \-----Avoise Of Craon
         |                           /-----Guy VIII Lord Of Vitre And Laval
         |                          |        |                  /-----Andre II Lord Of Vitre
         |                          |        |         /-----Andre III Lord Of Vitre And Combourg
         |                          |        |        |         \-----Eustachie Of Rays
         |                          |         \-----Philippa Of Vitre
         |                          |                 |         /-----Gui De THOUARS, Count Of Brittany
         |                          |                  \-----Catherine Of Thouars
         |                          |                           \-----Constance Countess Of Brittany
         |                  /-----Andre Chatelain Of Love, Lord Of Chatillon-En-
         |                 |        |                           /-----Erard II Count Of Brienne
         |                 |        |                  /-----Jean De BRIENNE, King Of Jerusalem
         |                 |        |                 |         \-----Agnes De MONTFAUCON
         |                 |        |         /-----Louis De BRIENNE, Viscount Of Beaumont In Main
         |                 |        |        |        |         /-----Alfonso IX King Of Leon
         |                 |        |        |         \-----Berengaria Of Leon
         |                 |        |        |                  \-----Berengaria Of Castile
         |                 |         \-----Jeanne Of Beaumont
         |                 |                 |                  /-----Richard I De BEAUMONT, Viscount Of Maine
         |                 |                 |         /-----Raoul De BEAUMONT, Vicomte of Beaumont
         |                 |                 |        |         \-----Lucie De L'AIGLE
         |                 |                  \-----Agnes De BEAUMONT
         |                 |                           \-----Agnes
         |         /-----Jean Lord Of Chatilion Aubigne And Olivet
         |        |        |         /-----Hugues Of Baucay
         |        |         \-----Eustachie Of Baucay
         |        |                  \-----Alix Of Chatillon
          \-----Jeanne Of Laval
                  |         /-----Jean Of Tinteniac
                   \-----Isabelle Of Tinteniac
                            \-----Jeanne Of Dol

Descendants of Guy XIV Count Of Laval

1. Guy XIV Count Of Laval m. Isabeau Of Bretagne

m. Isabeau Of Bretagne father: John VI Duke Of Brittany mother: Jeanne Of France

2+ Louise De Laval m. Jean III De BRAOSE, Count Of Penthievre

3 Jeanne De Laval m. Rene Duke Of Anjou; Rene Duke Of Anjou father: Louis II Count Of Anjou mother: Yolande Of Aragon

2nd generation

2. Louise De Laval m. Jean III De BRAOSE, Count Of Penthievre

m. Jean III De BRAOSE, Count Of Penthievre

4+ Isabel De BRAOSE m. Jean IV De RIEUX, Count Of Harcourt

3rd generation

4. Isabel De BRAOSE m. Jean IV De RIEUX, Count Of Harcourt

m. Jean IV De RIEUX, Count Of Harcourt

5+ Jean De RIEUX, Seigneur De Chateauneuf m. Beatrix De JONCHERES

4th generation

5. Jean De RIEUX, Seigneur De Chateauneuf m. Beatrix De JONCHERES

m. Beatrix De JONCHERES

6+ Rene De RIEUX, Seigneur De Sourdeac m. Susanne De Sainte Melaine

5th generation

6. Rene De RIEUX, Seigneur De Sourdeac m. Susanne De Sainte Melaine

m. Susanne De Sainte Melaine

7+ Marie De RIEUX m. Sebastien De PLOEUC, Marquis De Timeur