Research Notes:

"Nigellus de Oilli" donated land "in Oxenefordscira in loco...Wdemundesleia, quam Droco de Andelia concessit" to Abingdon monastery by charter dated  between 1100 and 1105, witnessed by "...Rogero de Canesio...".

"Nigellus de Oilli" donated land "de Abbefelda quam Algarus tenebat" to Abingdon monastery by undated charter, witnessed by "...Rogeri de Casneto...".

Henry I King of England confirmed donations to Eynsham abbey, including the donation of "decimam terre sue de Ministre et de tota lana sua de Oxenefordscyra" made by "Rogerius de Cheisnet", by charter dated 25 Dec 1109. ¹

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THE CHESNEYS OF OXFORDSHIRE.

Ralf I....had a son Roger; and him I take to be Roger de Chesney who married Aliz de Langetot, probably daughter of Ralf de Langetot who held Campion (Beds.) of Walter Gifford in 1086, and became the progenitor of the Oxfordshire Chesneys. The history of this branch has been sketched by Mr. H. E. Salter, mainly from the evidence of the Eynsham charters. Mr. Salter suggests that this Roger was the man of that name who in 1086 held Heyford Warren of Robert d'Oilly; on the other hand, Blomfield identifies Roger's manor as Lower Heyford, and gives Heyford Warren as the manor held by "Ralf" of Miles Crispin. Roger seems to have died in or about 1109, but his wife survived him by about forty years. They had at least ten children, of eight of whom the names are known.... ²

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The 4 hides of Graffham held in 1086 by Ralph (de Chesney) became the manor of WONWORTH. Ralph's son Roger de Chesney gave to Lewes Priory the church of 'Mellers', now Madehurst, and the tithes of his demesnes in Graffham, which grants were confirmed by his sons Hugh and William, and at a later date the priory was receiving in Graffham the tithes of the part, and in Wonworth 2 sheaves of the tithes of the old demesne.... ³