Roger de Berkeley, feudal Lord of Dursley, son and heir of Roger de Berkeley, feudal Lord of Berkeley before the grant to Robert Fitz Harding, who [Roger] had lost the manor of Berkeley c1152 for temporizing between Stephen I and the Empress Maud. [Burke's Peerage]
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(c) The Dursley Lordship continued in his descendants in the male line (the issue of his son and heir, Roger de Berkeley, by Helen, 1st daughter of Robert Fitz Harding, his successor in the lands of Berkeley for eight generations, when Nicholas Berkeley, the heir male, died s.p. in 1382. By the heir geeral, Robert Wykes, it was alienated in 1564. In 1404, by the death of Sir Nicholas Berkeley, of Coberley, co. Gloucester, the whole of the male issue of Roger, the founder of this race, became extinct. [Complete Peerage II:124 note (c)]