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. Alan Of Brittany Death: 29 Dec 1212
  2. Conan Of Brittany Death: 6 Feb Before 1215
  3. Geslin Of Brittany Death: After 1225
  4. Stephen Of Brittany Death: After 1202
  5. Henry Of Brittany Birth: 1152 Death: 1152

Bibliography
  1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 10, Oakham-Richmond. London: St Catherine Press, 1945. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP X [Ap][p0-9].*].
  2. Clutterbuck, Robert, History and Antiquities of the County of Hertford, London: Nichols, Son, and Bentley, 1815-27, v1-3. Available at https://familysearch.org/search/catalog/188626. Information from this source tagged as [Ref: Clutterbuck Hertford v[1-3]p[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. Keats-Rohan, K.S.B., Domesday Descendants, A Prosopography of Persons Occurring in English Documents 1066-1166. Vol II: Pipe Rolls to Cartae Baronum. Bury St Edmunds, Suffolk: Boydell Press, 2002. NYPL ARF 03-4178 vol 2. Corrections at http://users.ox.ac.uk/~prosop/domesday-descendants-corrigenda.pdf Information from this source tagged as [Ref: Keats-Rohan DD p[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 v4p[0-9]*].

Sources for birth and parent Information
date:
abt 1100 [Ref: CP X p787(g)]
abt 1100, third son [Ref: CP X p780]
youngest son [Ref: Keats-Rohan DD p222],
parents:
[Ref: CP X p780, CP X p787(g), Clutterbuck Hertford v2p85, Keats-Rohan DD p222, Richardson RoyalAnc v4p482]
Sources for death Information
date:
[Ref: CP X p780]
early in 1183 [Ref: CP X p787(g)]
Sources with Inaccurate death Information
date:
1190 [Ref: ES III.4 #724]
Sources with Information about marriage to Matilda Of Vendome
date:
[Ref: CP X p780, CP X p787(g), ES III.4 #724],
place:
[Ref: CP X p787(g), ES III.4 #724],
child:
[Ref: CP X p780, Keats-Rohan DD p222]
Research Notes:
Count of Brittany [Ref: CP X p780, Richardson RoyalAnc v4p482]
Count of Treguier and Guincamp (Bretagne) [Ref: ES III.4 #724]
Count of Treguier [Ref: Richardson RoyalAnc v4p482]
Lord of Avaugour [Ref: Keats-Rohan DD p222]

had Treguier [Ref: CP X p780]

his rightful inheritance in the county Guingamp was alienated to his great-niece Duchess Constance when her father Conan IV was deposed by Henry II [Ref: Keats-Rohan DD p222]

retained the style count and was later styled from his lordship of Avaugour [Ref: Keats-Rohan DD p222]

1186: after the death of Constance's husband Geoffrey, Henry's son Alan recovered his lost inheritance in Guingamp [Ref: Keats-Rohan DD p222]



Pedigree of Henry Count Of Brittany
                                                                /-----Riroreth Count Of Nantes
                                                       /-----Adam I The Great Count Of Nantes And Vannes, Duke Of Brit
                                              /-----Paskurtan Count Of Rennes
                                             |         \-----Oreguen
                                     /-----Judhael Count Of Rennes
                                    |        |                  /-----Gurivant Count Of Rennes
                                    |        |         /-----Berenger Count Of Rennes
                                    |        |        |         \-----(Unk Dau) Heiress Of Brittany
                                    |         \-----(Unk Dau) Heiress Of Rennes
                            /-----Conan I Duke Of Brittany
                           |         \-----Gerberge
                   /-----Geoffrey Duke Of Brittany
                  |        |                                    /-----Ingelger Count Of Anjou
                  |        |                           /-----Fulk Le Roux Count Of Anjou
                  |        |                          |         \-----Adela Of The Gatinais
                  |        |                  /-----Fulk II The Good Count Of Anjou
                  |        |                 |        |         /-----Werner Seigneur De Locher Villandry And La Stai
                  |        |                 |         \-----Roscilla
                  |        |                 |                  \-----Forcanda
                  |        |         /-----Geoffrey I Grisgonelle Count Of Anjou
                  |        |        |        |                  /-----Gausfred
                  |        |        |        |         /-----Gausfred Count Of Nevers
                  |        |        |         \-----Gerberga Of Nevers
                  |        |        |                 |         /-----Hector Noble Of Arverne
                  |        |        |                  \-----Aba
                  |        |        |                           \-----Aba Abbess Of Sauxillanges
                  |         \-----Ermengarde Of Anjou
                  |                 |                           /-----Herbert I Count Of Vermandois
                  |                 |                  /-----Herbert II Count Of Vermandois
                  |                 |                 |         \-----Beatrice Of Morvois
                  |                 |         /-----Robert Count Of Troyes
                  |                 |        |        |         /-----Robert I King Of France
                  |                 |        |         \-----Hildebrante/Liegarde/Adela
                  |                 |        |                  \-----Aelis
                  |                  \-----Adele Of Troyes
                  |                          |                  /-----Manasses I Count Of Vergy, Duxin, And Chalons
                  |                          |         /-----Giselbert Duke Of Burgandy
                  |                          |        |         \-----Ermengarde
                  |                           \-----Adelaide Of Burgundy
                  |                                    \-----Ermengarde Of Burgandy
          /-----Eudes I Count Of Brittany
         |        |                                    /-----Ketil
         |        |                           /-----Hrolfr (Rollo) Duke Of Normandy
         |        |                  /-----William Longspee Duke Of Normandy
         |        |                 |        |         /-----Berenger Count Of Bayeux
         |        |                 |         \-----Poppa
         |        |                 |                 |         /-----Gurivant Count Of Rennes
         |        |                 |                  \-----(Unk Dau)
         |        |                 |                           \-----(Unk Dau) Heiress Of Brittany
         |        |         /-----Richard I The Fearless Duke Of Normandy
         |        |        |         \-----Espriota
         |         \-----Hawise Of Normandy
         |                 |         /-----(Unk) Forquelar Of Cirques
         |                  \-----Gunnora
 /-----Stephen Count Of Brittany
|        |                           /-----Budic Count Of Cornuaille
|        |                  /-----Benoit Count Of Cornuaille
|        |         /-----Alain Cagnairt Count Of Cornuaille
|        |        |         \-----Guinodeon
|         \-----Agnes Of Cornuaille
|                 |                                    /-----Matuedoi Count Of Poher
|                 |                           /-----Alain II Barbe Torte Count Of Nantes
|                 |                          |        |         /-----Adam I The Great Count Of Nantes And Vannes, Duke Of Brit
|                 |                          |         \-----(Unk Dau)
|                 |                          |                  \-----Oreguen
|                 |                  /-----Hoel Count Of Nantes
|                 |         /-----Judicael Count Of Nantes
|                  \-----Judith Of Nantes
|                           \-----Melisende
Henry Count Of Brittany
 \-----Hawise Of Guincamp



Descendants of Henry Count Of Brittany
1. Henry Count Of Brittany m. Matilda Of Vendome
m. Matilda Of Vendome father: Jean I Count Of Vendome mother: Bertha Of Puy-Du-Fou

2nd generation

2. Alan Of Brittany m1. Pernelle m2. Abeles
m. Pernelle
m. Abeles