William De Percy

William De was born about 1193 in Of, Alnwick, Northumberland, England.  He was an only child.  He died before July 28th, 1245.  He was buried before July 28th, 1245 in Salley Abbey, Craven, Yorkshire, England.

‌William De and Joan were married in a religious ceremony about 1216 in Of, Warwick, Warwickshire, England.  They had four daughters named Joan De, Agnes De, Alice De and Anastasia.

‌William De and Ellen were married in a religious ceremony about 1234 in , Red Castle, Augushire, Scotland.  They had seven sons and a daughter, named Jeffrey (Galfrid) De, Ingelram De, Alan De, Henry De, Josceline De, Walter De, Geffrey De and Elena De.