The VCH for Yorks North Riding, vol 2, pub 1923, pp. 98-103 has:

“Deyvill. Or a fesse sable with six fleurs de lis countercoloured.

“The tenancy in demesne belonged from the 12th century to the family of Deyvill. In 1193 John Deyvill gave the king 40s. that Ranulph de Sules might be summoned to show why he deforced him of land at Thornton Bridge. (fn. 62) John evidently took the side of the barons in 1215, (fn. 63) and was succeeded by his son Robert, (fn. 64) who in 1235 quitclaimed to the Abbot of Byland the fishery in the Swale granted by his father. (fn. 65) Another John Deyvill, the son of Robert, was party in 1280 to an agreement with the Prior of Newburgh by which the prior had the right of distraint on the land of the Deyvills in Cundall and Leckby if they failed to pay rent for tenements in Gargrave. (fn. 66) In return the prior promised to hold a service yearly at Newburgh for the souls of John, Maud his wife, and their heirs and ancestors. In 1284–5 John Deyvill son of John was holding 6 carucates in Cundall and Thornton Bridge. (fn. 67) The younger John seems to have had two daughters, Elizabeth married to Alexander de Leeds, and Margaret, whose husband is not known. (fn. 68) In 1323 he granted the manors of Cundall and Thornton Bridge to Alexander de Leeds and Elizabeth, and gave notice to his tenants that their services were due to Alexander. (fn. 69) Twelve years later both manors were in the possession of Boniface de Leeds, probably son of Alexander. He granted to Alexander his son and Margaret his wife two parts of the manors of Thornton and Cundall, and the reversion of the third part, which was held at the time by Adam de Everingham and his wife as her dower. (fn. 70)”