Gilbert d'Oilly, Sire de Oilleia la Ribaude

https://books.google.com/books?id=C7YOAAAAYAAJ&pg=PA13&lpg=PA13&dq=...

An old book on Google books, The Topographer and Genealogist, Volume 1 edited by John Gough Nichols, London, 1846. See pp. 366-378 for "Pedigree of the Early d'Oylys" written by W. D'Oyly Bailey, 1843. It's all charts so I can't cut and paste.

Sons of the unknown "Sire" de Oilleia la Ribaude near Lisieux:

Robert d'Oilly, Baron of Hook-Norton, Co. Oxon m.Aldgitha de Wallingford

Nigel d'Oyly, heir to brother as Baron of Hook-Norton and Constable of Oxford Castle, d 1112, Constable of England m. Agnes

Gilbert d'Oyly, living in 1074

Wido d'Oyly, Domesday tenant in Wigginton, Co. Oxon

Foulk d'Oyly, living in 1074

Ralph d'Oyly, a Domesday undertenant of lands in Bloxham, Co. Oxon

Richard d'Oyly, who bore the family shield at the Battle of Jerusalem in 1100