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:
Marriage:
Bibliography
  1. 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 v1[pc][0-9]*].

Sources for birth and parent Information
parents:
[Ref: Richardson RoyalAnc v1p405]
Sources with Information about marriage to Dreux De Mello
date:
first marriage of Isabelle [Ref: Richardson RoyalAnc v1p405]
Sources with Information about marriage to Louis I Count of Sanccerre
names:
[Ref: Richardson RoyalAnc v1p405]
Research Notes:



Pedigree of Isabelle De Mayenne
                                              /-----Haymon
                                     /-----Geoffrey I Baron Of Mayenne, Count Of Maine
                            /-----Gautier Lord Of Mayenne
                           |        |         /-----Gautier Of Alluye
                           |         \-----Mahaut Of Alluye
                   /-----Juhael I Lord Of Mayenne
                  |        |                                    /-----Ansfred Le Goz, Vicomte De Hiesmer
                  |        |                           /-----Turstain De Goz, Vicount Of Hiemois
                  |        |                  /-----Richard Le Goz, Vicomte D'Avranches
                  |        |         /-----Turstain De Presles
                  |        |        |         \-----Emma
                  |         \-----Adeline/Alix
          /-----Geoffroy Sire De Mayenne
         |        |                                             /-----Hugh De Montgomery
         |        |                                    /-----Roger De Montgomery, Seigneur Of Montgomery
         |        |                                   |         \-----Josceline
         |        |                           /-----Roger De Montgomery, Earl Of Shrewsbury
         |        |                          |         \-----Emma
         |        |                  /-----Robert II De Belesme, Count Of Alencon
         |        |                 |        |                  /-----William I Count Of Alencon And Bellasme
         |        |                 |        |         /-----William II TALVAS
         |        |                 |        |        |         \-----Mathilde
         |        |                 |         \-----Mabel De Belesme
         |        |                 |                 |         /-----Arnulf
         |        |                 |                  \-----Hildeburg
         |        |         /-----William III TALVAS, Count Of Alencon And Ponthieu
         |        |        |        |                           /-----Enguerrand I Count Of Ponthieu
         |        |        |        |                  /-----Hugh II Count Of Ponthieu
         |        |        |        |                 |         \-----Adela Of Holland
         |        |        |        |         /-----Guy I Count Of Ponthieu
         |        |        |        |        |        |         /-----Guenfroi Count Of Aumale
         |        |        |        |        |         \-----Bertha Of Aumale
         |        |        |         \-----Agnes Of Ponthieu
         |        |        |                  \-----Ada
         |         \-----Clemence Of Poitieu
         |                 |                                    /-----Robert II The Pious King Of France
         |                 |                           /-----Robert The Old Duke Of Burgundy
         |                 |                          |         \-----Constance Of Provence
         |                 |                  /-----Henry Of Burgundy
         |                 |                 |        |         /-----Dalmus I Of Semur En Auxois
         |                 |                 |         \-----Helle Of Semur En Auxois
         |                 |                 |                  \-----Aremburge De Vergy
         |                 |         /-----Eudes I Borrel Duke Of Burgundy
         |                 |        |        |                  /-----Raimond Borrel Count Of Barcelona
         |                 |        |        |         /-----Berengar Raimond I Count Of Barcelona
         |                 |        |        |        |         \-----Ermisende
         |                 |        |         \-----(Unk) Of Barcelona
         |                 |        |                 |         /-----Sunifredo II Lord Of Lluca And Villanova
         |                 |        |                  \-----Guisle Of Lluca
         |                 |        |                           \-----Ermendinde Of Balsareny
         |                  \-----Helie/Alice Of Burgandy
         |                          |                           /-----Otto William Count Of Burgundy, Nevers, And Dijon
         |                          |                  /-----Raynald I Count Of Burgundy
         |                          |                 |         \-----Ermentrude Of Roucy
         |                          |         /-----William I The Great Count Of Burgundy
         |                          |        |        |         /-----Richard II The Good Duke Of Normandy
         |                          |        |         \-----Alice Of Normandy
         |                          |        |                  \-----Judith Of Brittany
         |                           \-----Matilda (Sibylle) Of Burgundy
         |                                   |                  /-----Raimond Borrel Count Of Barcelona
         |                                   |         /-----Berengar Raimond I Count Of Barcelona
         |                                   |        |         \-----Ermisende
         |                                    \-----Stephanie Of Barcelona
         |                                            |         /-----Sunifredo II Lord Of Lluca And Villanova
         |                                             \-----Guisle Of Lluca
         |                                                      \-----Ermendinde Of Balsareny
 /-----Juhael II Sire De Mayenne
|        |                                                      /-----Torf The Rich
|        |                                             /-----Thorold Seigeur Of Pont-Audemer
|        |                                            |         \-----Etemberga De Briquebec
|        |                                    /-----Humphrey De Vieilles
|        |                                   |        |         /-----(Unk) Forquelar Of Cirques
|        |                                   |         \-----Aveline
|        |                           /-----Roger De Beaumont
|        |                          |         \-----Aubreye De La Haie
|        |                  /-----Sir Robert De Beaumont, Earl Of Leicester
|        |                 |        |                           /-----Galeran II Count Of Meulen
|        |                 |        |                  /-----Hugo I Count Of Meulen
|        |                 |        |         /-----Waleran Count Of Meulan
|        |                 |        |        |        |         /-----Walter II Count Of Amiens, Valois, And The Vexin
|        |                 |        |        |         \-----Oda Of Valois
|        |                 |        |        |                  \-----Adele
|        |                 |         \-----Adelise Of Meulan
|        |                 |                  \-----Ode
|        |         /-----Waleran De BEAUMONT, Earl Of Worcester
|        |        |        |                                    /-----Hugh Capet King Of France
|        |        |        |                           /-----Robert II The Pious King Of France
|        |        |        |                          |         \-----Adelaide Of Poitou
|        |        |        |                  /-----Henry I King Of France
|        |        |        |                 |        |         /-----William I Count Of Aries And Provence
|        |        |        |                 |         \-----Constance Of Provence
|        |        |        |                 |                  \-----Adelaide (Blanch) Of Anjou
|        |        |        |         /-----Hugh Magnus Duke Of France
|        |        |        |        |        |                  /-----Saint Vladimir Grand Prince Of Kiev
|        |        |        |        |        |         /-----Jaroslav I Grand Prince Of Kiev
|        |        |        |        |        |        |         \-----Rogneide Of Polotzk
|        |        |        |        |         \-----Anne Of Kiev
|        |        |        |        |                 |         /-----Olaf III SKOTKONUNG, King Of Sweden
|        |        |        |        |                  \-----Ingegard
|        |        |        |        |                           \-----Astrid
|        |        |         \-----Isabel De Vermandois, Countess Of Leicester
|        |        |                 |                           /-----Herbert III Count Of Vermandois
|        |        |                 |                  /-----Eudes Count Of Vermandois
|        |        |                 |                 |         \-----Ermengarde Of Bar
|        |        |                 |         /-----Herbert IV Count Of Vermandois
|        |        |                 |        |         \-----Parvie
|        |        |                  \-----Adelaide De Vermandois, Countess Of Vermandois
|        |        |                          |                  /-----Raoul II Seigneur Of Crepy And Valois
|        |        |                          |         /-----Raoul III The Great Count Of Valois And Vexin
|        |        |                          |        |         \-----Adelaide Of Bretemil
|        |        |                           \-----Adela De Valois
|        |        |                                   |         /-----Nocher III Count Of Bar-Sur-Aube
|        |        |                                    \-----Adela
|         \-----Isabella De BEAUMONT
|                 |                                             /-----Amauri I
|                 |                                    /-----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
|                 |         /-----Amauri IV De MONTFORT, Count Of Evereux
|                 |        |        |                           /-----Richard I The Fearless Duke Of Normandy
|                 |        |        |                  /-----Robert Count Of Evereux, Archbishop Of Rouen
|                 |        |        |                 |         \-----Gunnora
|                 |        |        |         /-----Richard Count Of Evereux
|                 |        |        |        |         \-----Herleva
|                 |        |         \-----Agnes Of Evereux
|                 |        |                  \-----Godehildie
|                  \-----Agnes De MONTFORT
|                          |                  /-----Adam Of Garlande
|                          |         /-----Anscau De Garlande, Seneschal Of France
|                           \-----Agnes De Garlande
|                                    \-----(Unk) De Montmorency
Isabelle De Mayenne
|                                                               /-----Rivallon The Vicaire
|                                                      /-----Triscan
|                                                     |         \-----Guenergant Vicountess Of Rennes
|                                             /-----Robert I Princeps Of Vitre
|                                            |         \-----Enoguen
|                                    /-----Andre I De Vitre
|                                   |        |                  /-----Suthardus Vetulus De CREDONE
|                                   |        |         /-----Guerin I De CRAON
|                                   |         \-----Bertha Dame De Craon
|                           /-----Robert II Lord Of Vitre
|                          |        |                  /-----Herluin De Contreville
|                          |        |         /-----Robert De Mortain, Count Of Mortain In Avranchi
|                          |        |        |        |         /-----Fulbert Of Falaise
|                          |        |        |         \-----Herleve Of Falaise
|                          |        |        |                  \-----Duxia
|                          |         \-----Agnes Of Mortain
|                          |                 |                  /-----Roger De Montgomery, Seigneur Of Montgomery
|                          |                 |         /-----Roger De Montgomery, Earl Of Shrewsbury
|                          |                 |        |         \-----Emma
|                          |                  \-----Maud De Montgomery
|                          |                          |         /-----William II TALVAS
|                          |                           \-----Mabel De Belesme
|                          |                                    \-----Hildeburg
|                  /-----Robert III Lord Of Vitre
|                 |         \-----Emma De La GUERCHE
|         /-----Allan De VITRE, Lord Of Dinan
|        |        |                                             /-----Haimon I Count In North Brittany
|        |        |                                    /-----Josselin Vicount Of Dinan
|        |        |                                   |         \-----Rioanteline
|        |        |                           /-----Oliver I Vicount Of Dinan
|        |        |                          |         \-----Orgwen
|        |        |                  /-----Geoffrey Vicount Of Dinan
|        |        |                 |         \-----Ganna
|        |        |         /-----Alan Of Dinan
|        |        |        |         \-----Orieldis
|        |         \-----Emma Of Dinan
|        |                 |                                    /-----Conan I Duke Of Brittany
|        |                 |                           /-----Geoffrey Duke Of Brittany
|        |                 |                          |         \-----Ermengarde Of Anjou
|        |                 |                  /-----Eudes I Count Of Brittany
|        |                 |                 |        |         /-----Richard I The Fearless Duke Of Normandy
|        |                 |                 |         \-----Hawise Of Normandy
|        |                 |                 |                  \-----Gunnora
|        |                 |         /-----Stephen Count Of Brittany
|        |                 |        |        |                  /-----Benoit Count Of Cornuaille
|        |                 |        |        |         /-----Alain Cagnairt Count Of Cornuaille
|        |                 |        |        |        |         \-----Guinodeon
|        |                 |        |         \-----Agnes Of Cornuaille
|        |                 |        |                 |         /-----Judicael Count Of Nantes
|        |                 |        |                  \-----Judith Of Nantes
|        |                 |        |                           \-----Melisende
|        |                  \-----Agnorie
|        |                           \-----Hawise Of Guincamp
 \-----Gervaise Of Dinan
         |                                                      /-----Alfred De FOUGERES
         |                                             /-----Main De FOUGERES, Seigneur Of Fougeres
         |                                    /-----Ralph De FOUGERES, Seigneur Of Fougeres
         |                                   |        |         /-----Geoffrey Of Sable
         |                                   |         \-----Adelaide Of Sable
         |                                   |                  \-----Adelais
         |                           /-----Henry De FOUGERES, Seigneur Of Fougeres
         |                          |        |                  /-----Gilbert Count Of Brionne
         |                          |        |         /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
         |                          |         \-----Avise De CLARE
         |                          |                 |         /-----Walter Giffard Lord Of Longueville
         |                          |                  \-----Rohese GIFFARD
         |                          |                           \-----Ermengarde FLATEL
         |                  /-----Raoul De FOUGERES, Seigneur Of Fougeres
         |                 |        |                           /-----Geoffrey Duke Of Brittany
         |                 |        |                  /-----Eudes I Count Of Brittany
         |                 |        |                 |         \-----Hawise Of Normandy
         |                 |        |         /-----Stephen Count Of Brittany
         |                 |        |        |        |         /-----Alain Cagnairt Count Of Cornuaille
         |                 |        |        |         \-----Agnes Of Cornuaille
         |                 |        |        |                  \-----Judith Of Nantes
         |                 |         \-----Olive Of Brittany
         |                 |                  \-----Hawise Of Guincamp
         |         /-----William De FOUGERES
         |        |        |                                    /-----Haymon
         |        |        |                           /-----Geoffrey I Baron Of Mayenne, Count Of Maine
         |        |        |                  /-----Gautier Lord Of Mayenne
         |        |        |                 |        |         /-----Gautier Of Alluye
         |        |        |                 |         \-----Mahaut Of Alluye
         |        |        |         /-----Juhael I Lord Of Mayenne
         |        |        |        |        |                  /-----Richard Le Goz, Vicomte D'Avranches
         |        |        |        |        |         /-----Turstain De Presles
         |        |        |        |        |        |         \-----Emma
         |        |        |        |         \-----Adeline/Alix
         |        |         \-----Matilda Of Mayenne
         |        |                 |                           /-----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
         |        |                  \-----Clemence Of Poitieu
         |        |                          |                  /-----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
          \-----Clemence Of Fougerees
                  |                           /-----Robert De HOMMET
                  |                  /-----Richard De HOMMET
                  |         /-----William Du HOMMET, Constable Of Normandy
                  |        |        |                  /-----William De SAY
                  |        |        |         /-----Jordan De SAY
                  |        |        |        |        |         /-----Hugh De Grantmesnil, Baron Of Leicester
                  |        |        |        |         \-----Agnes De GRANDMESNIL
                  |        |        |        |                  \-----Adeliza Of Beaumont
                  |        |         \-----Agnes De SAY
                  |        |                 |                  /-----Rainfred De RUMILLY
                  |        |                 |         /-----Robert De RUMILLY, Baron Of Skipton
                  |        |                  \-----Lucy De RUMILLY
                   \-----Agatha Du HUMMET
                           |                                    /-----Adam De BRUS
                           |                           /-----Robert De BRUS, Baron Of Skelton
                           |                          |         \-----Emma
                           |                  /-----Adam De BRUS, Baron Of Skelton
                           |                 |        |         /-----Fulk PAYNEL
                           |                 |         \-----Agnes PAYNEL
                           |                 |                  \-----Beatrix
                           |         /-----Adam II De BRUS, Baron Of Skelton
                           |        |        |                  /-----Eudes Count Of Champagne, Lord Of Holderness
                           |        |        |         /-----Stephen Of Aumale, Lord Of Holderness
                           |        |        |        |         \-----Adelaide Of Normandy
                           |        |         \-----Agnes Of Aumale
                           |        |                 |         /-----Ralph De MORTIMER, Baron Of Wigmore
                           |        |                  \-----Hawise De MORTIMER
                           |        |                           \-----Milicent
                            \-----Lucy De BRUS
                                    |                           /-----(Unk)
                                    |                  /-----Osbert De ARCHES
                                    |         /-----William De ARCHES
                                    |        |         \-----Maud
                                     \-----Juetta De ARCHES
                                              \-----Jueta



Descendants of Isabelle De Mayenne
1. Isabelle De Mayenne m1. Dreux De Mello m2. Louis I Count of Sanccerre
m. Dreux De Mello
m. Louis I Count of Sanccerre