man William De Percy‏‎, son of Robert De Percy and Agnes Percy‏.
Born ‎ 1138 at Kildale, Yorkshire, England, died ‎ 1204 at Ormesby, Guisborough, North Ride Yorkshire, England‎, 65 or 66 years

Married ‎ 1178 at Barwick, Yorkshire, England (23 or 24 years married) to:

woman Agnes De Flamville‏‎, daughter of Roger De Flamville and Jueta Of Arches‏.
Born ‎ 1153 at Dalby, Yorkshire, England, died ‎ 1202 at Austria, Hungary‎, 48 or 49 years

Child:

1.
woman Alice De Percy‏‎
Born ‎ 1180 at Kildale, Yorkshire, England