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Family:
Marriage:
Bibliography
  1. 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]*].
  2. Sanders, I. J., English Baronies, A Study of Their Origin and Descent 1086-1327. Oxford: Clarendon Press, 1960. Information from this source tagged as [Ref: Sanders Baronies p[0-9]*].

Sources for birth and parent Information
parents:
[Ref: Keats-Rohan DD p496],
father:
[Ref: Sanders Baronies p109(2)]
Sources with Information about marriage to William De ROLLOS
names:
[Ref: Keats-Rohan DD p496, Sanders Baronies p109(2)]
Research Notes:



Pedigree of Isabel De La HAY
          /-----Robert De La HAY, Lord Of Hanlac
 /-----Richard De La HAY, Baron Of Brattleby
|        |                  /-----Colswein Of Lincoln, Baron Of Brattlesby
|        |         /-----Picot Of Lincoln, Baron Of Brattlesby
|         \-----Muriel Of Lincoln
|                  \-----Beatrice
Isabel De La HAY
|                           /-----Baldwin De REVIERS
|                          |        |         /-----Osmund De Centumvillis, Vicount Of Vernon
|                          |         \-----(Unk Dau) De Centumvillis
|                          |                 |         /-----Hugh Bishop Of Coutances
|                          |                  \-----Satselina
|                          |                          |         /-----(Unk) Forquelar Of Cirques
|                          |                           \-----(Unk Dau)
|                  /-----Richard De REVIERS, Seigneur Of Reviers, Vernon,
|         /-----William De VERNON, Seigneur Of Vernon
|        |        |         /-----William PEVEREL, Baron Of Peverel
|        |         \-----Adelise PEVEREL
|        |                  \-----Adeline
 \-----Matilda De VERNON
         |                  /-----Ralph De TANCARVILLE
         |         /-----William De TANCARVILLE, Chamberlain
         |        |        |         /-----Eudo Stigand De MEZIDON
         |        |         \-----Agnes De MEZIDON
          \-----Lucy De TANCARVILLE
                  |                           /-----Osbern De Bolbec, Seigneur Of Longueville
                  |                  /-----Godfrey Vicomte Of Arques
                  |                 |        |         /-----(Unk) Forquelar Of Cirques
                  |                 |         \-----Wevie
                  |         /-----William Of Arques, Baron Of Folkestone
                  |        |        |         /-----Gozelin Vicomte Of Arques
                  |        |         \-----(Unk Dau) Of Arques
                  |        |                  \-----Ememline
                   \-----Maud Of Arques
                           |         /-----William MALET
                            \-----Beatrice MALET
                                    |                           /-----Grimold Prince Of Monaco
                                    |                  /-----Crispin De BEC
                                    |                 |         \-----Crispina
                                    |         /-----Gilbert Crespin, Lord Of Tillieres
                                    |        |        |         /-----Sigfrid Count Of Guines
                                    |        |         \-----Heloise De GUINES
                                    |        |                  \-----Elsunde Of Flanders
                                     \-----Esilia CRISPIN
                                             |         /-----Baudry
                                              \-----Gunnor De ANJOU
                                                      |         /-----Robert Of Brionne
                                                       \-----(Unk Dau) Of Brionne



Descendants of Isabel De La HAY
1. Isabel De La HAY m. William De ROLLOS
m. William De ROLLOS