John married Beatrice on 1189 in Eston, Oxfordshire, England.
Seat was at Wremham
One the major feudal barons of the Magna Carta
M E Sorley: The Sorley Pedigrees P 34
Pedigree of the Early D'Oylys P. 369
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Sir John D'Oyly, knt. held one knight's fee in Oxfordshire, in 3rd John, 1201,[159] and paid three marks scutage for it the same or following year,[160] and with him the authentic detail in the old pedigrees of this branch really commences. He was a miles, or military knight.[161] In 9th John, 1208, he was fined to the amount of 50 marks for giving a false verdict,[162] (his eleven co-jurors being also fined,) and was alive in 1226, as appears by a fine levied of tenements in Ewelme, co. Oxon,, between Henry de Scephurst, plaintiff, and Reginald de Wateham and Beatrice his wife, deforciants, in 11th Hen. III.[163] He had issue two sons,