born: 1335 in Warkworth Castle, Alnwick, Northumberland, England 
died: 18 February 1377/78

Father: Sir Henry Percy, K.G., Lord Percy
Mother:  Idonea de Clifford

Spouse:  John de Neville, Lord of Neville

Children:
1. Ralph de Neville, K.G., Earl of Westmoreland