William de Grandison

M, (circa 1250 - 27 June 1335)
Father-Biological*Pierre d. c 1258
Mother-Biological*Agnes de Neuchâtel
Family Lines
Boudreau Line
Last Edited=17 Mar 2022
     William de Grandison was born circa 1250. He was the son of Pierre and Agnes de Neuchâtel.

William de Grandison married Sybil Tregoz, daughter of John de Tregoz and Mabel FitzWarin, on 21 January 1286. William de Grandison died on 27 June 1335.

Children of William de Grandison and Sybil Tregoz