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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]*].

Sources for birth and parent Information
parents:
[Ref: Keats-Rohan DD p622]
Sources with Information about marriage to William De CHESNEDUIT
names:
[Ref: Keats-Rohan DD p622]
Research Notes:
[WTM- shown twice on DD p622, first as daughter of Roger de OILLY & Hawise, secondly as daughter of Roger de OILLY (their son) & Aveline] [Ref: Keats-Rohan DD p622]



Pedigree of Helewise De OILLY
                   /-----(Unk) De OILLY
          /-----Roger De OILLY
 /-----Roger De OILLY
Helewise De OILLY
|                  /-----Ralph De CHESNEY
|         /-----Roger De CHESNEY
 \-----Hawise De CHESNEY
         |         /-----Ralph De LANGTOT
          \-----Alice De LANGTOT



Descendants of Helewise De OILLY
1. Helewise De OILLY m. William De CHESNEDUIT
m. William De CHESNEDUIT