Adelize married Waltheof II EARL OF NORTHUMBRIA in 1070. Waltheof (son of Earl Sigurd "the Strong" BIOMSSON and Aelfled III OF NORTHUMBRIA) was born about 1045 in Northumberland, Northumbria, England; died on 31 May 1076 in Winchester, Hampshire, England; was buried in Croyland, Wellingborough, England. [Group Sheet]