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Family:
Bibliography
  1. Bevan, Rosie, Corrections to K. S. B. Keats-Rohan's Domesday Series, Volume II: Domesday Descendants. Version 7, 25 Sep 2005. Available at http://www.fmg.ac/Projects/Domesday/ Information from this source tagged as [Ref: Bevan DD++ p[0-9]*].
  2. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, extant, extinct, or dormant, vol 05 E-Goojerat. London: St Catherine Press, 1926. Reprinted (4 per page) Gloucester: A Sutton, 1982. Available at https://familysearch.org/search/catalog/271412 Information from this source tagged as [Ref: CP V [Ap][p0-9].*].
  3. 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]*].
  4. 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]*].
  5. 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
date:
died 1236 before coming of age [Ref: Sanders Baronies p45],
parents:
[Ref: CP V p116f, Clutterbuck Hertford v1p280, Richardson RoyalAnc v2p511],
father:
[Ref: Bevan DD++ p263, Sanders Baronies p45]
Sources for death Information
date:
1236 [Ref: Bevan DD++ p263, Sanders Baronies p45]
shortly before 2 Jan 1235/6 [Ref: CP V p116f]
Research Notes:
inherited Barony of Folkestone from father [Ref: Sanders Baronies p45]

d. before coming of age; heir was his sister Maud [Ref: Sanders Baronies p45]

d.s.p [Ref: CP V p116f]



Pedigree of William D'AVRANCHES, Baron Of Folkestone
                            /-----Rualon D'AVRANCHES
                   /-----William D'AVRANCHES, Baron Of Folkestone
                  |        |                  /-----Ralph De MONVILLE
                  |        |         /-----Nigel De MONVILLE
                  |        |        |         \-----Asa
                  |         \-----Maud De MONVILLE
                  |                 |                           /-----Osbern De Bolbec, Seigneur Of Longueville
                  |                 |                  /-----Godfrey Vicomte Of Arques
                  |                 |                 |         \-----Wevie
                  |                 |         /-----William Of Arques, Baron Of Folkestone
                  |                 |        |        |         /-----Gozelin Vicomte Of Arques
                  |                 |        |         \-----(Unk Dau) Of Arques
                  |                 |        |                  \-----Ememline
                  |                  \-----Emma Of Arques
                  |                          |         /-----William MALET
                  |                           \-----Beatrice MALET
                  |                                   |         /-----Gilbert Crespin, Lord Of Tillieres
                  |                                    \-----Esilia CRISPIN
                  |                                             \-----Gunnor De ANJOU
          /-----Simon D'AVRANCHES, Baron Of Folkestone
 /-----William D'AVRANCHES, Baron Of Folkestone
William D'AVRANCHES, Baron Of Folkestone
|                                    /-----Hugh De BOCLANDE
|                           /-----William De BOCLANDE
|                  /-----Hugh De BOCLANDE
|         /-----Sir William De BOCLANDE
|        |         \-----Maud
 \-----Maud De BOCLANDE
         |                                    /-----William De SAY
         |                           /-----Jordan De SAY
         |                          |        |                  /-----Robert De Grentmesnil
         |                          |        |         /-----Hugh De Grantmesnil, Baron Of Leicester
         |                          |        |        |         \-----Hawise De Echafour
         |                          |         \-----Agnes De GRANDMESNIL
         |                          |                 |         /-----Ivo II Count Of Beaumont
         |                          |                  \-----Adeliza Of Beaumont
         |                          |                           \-----Judith
         |                  /-----William De SAY
         |                 |        |                  /-----Rainfred De RUMILLY
         |                 |        |         /-----Robert De RUMILLY, Baron Of Skipton
         |                 |         \-----Lucy De RUMILLY
         |         /-----William De SAY
         |        |        |                  /-----Geoffrey De MANDEVILLE, Baron Of Pleshy
         |        |        |         /-----William De MANDEVILLE, Baron Of Pleshy
         |        |        |        |         \-----Athelaise
         |        |         \-----Beatrice De MANDEVILLE
         |        |                 |                  /-----Hubert De Ryes
         |        |                 |         /-----Eudo De RIE, Dapifer
         |        |                  \-----Margaret RIE
         |        |                          |                  /-----Gilbert Count Of Brionne
         |        |                          |         /-----Richard FITZ GILBERT De CLARE, Baron Of Clare
         |        |                           \-----Rohais
         |        |                                   |         /-----Walter Giffard Lord Of Longueville
         |        |                                    \-----Rohese GIFFARD
         |        |                                             \-----Ermengarde FLATEL
          \-----Maud De Say
                  |                                             /-----Donnchad (Duncan I) Mac CRINAN, King Of Scots
                  |                                    /-----Mael Coluim Ceann Moir (Malcolm III) Canmore Mac DONNCHAD, King Of Scots
                  |                                   |         \-----Sibylia Of Northumbria
                  |                           /-----David I The Saint King Of Scots
                  |                          |        |         /-----Edward Athling The Exile
                  |                          |         \-----Saint Margaret Of Scotland
                  |                          |                  \-----Agatha
                  |                  /-----Henry Of Huntingdon, Earl Of Huntingdon
                  |                 |        |                  /-----Sigurd Digera Earl Of Northumbria
                  |                 |        |         /-----Waltheof II Earl Of Huntingdon
                  |                 |        |        |         \-----Aelflaed
                  |                 |         \-----Maud Of Huntingdon
                  |                 |                 |         /-----Lambert Of Boulogne, Count Of Lens
                  |                 |                  \-----Judith Of Lens
                  |                 |                           \-----Adelaide Of Normandy
                  |         /-----William The Lion King Of Scots
                  |        |        |                           /-----Ralph II De Warrene
                  |        |        |                  /-----William De Warrene, Earl Of Surrey
                  |        |        |                 |         \-----Emma
                  |        |        |         /-----William II De Warrene, Earl Of Surrey
                  |        |        |        |        |         /-----Gherbod The Fleming, Advocate Of St. Bertins
                  |        |        |        |         \-----Gundred
                  |        |         \-----Ada De WARENNE
                  |        |                 |                  /-----Henry I King Of France
                  |        |                 |         /-----Hugh Magnus Duke Of France
                  |        |                 |        |         \-----Anne Of Kiev
                  |        |                  \-----Isabel De Vermandois, Countess Of Leicester
                  |        |                          |         /-----Herbert IV Count Of Vermandois
                  |        |                           \-----Adelaide De Vermandois, Countess Of Vermandois
                  |        |                                    \-----Adela De Valois
                   \-----Aufrica



Descendants of William D'AVRANCHES, Baron Of Folkestone
1. William D'AVRANCHES, Baron Of Folkestone