Notes for Baldwin III Count of Hainault
His wife, and the mother of Arnulf, is a mystery to me:
CP has her to be Yolande, dau of Gerard, count of Guelders,
Paul Therouf has her as Rozela of Ivrea who d. 1003 and whose father was Arnulf,,
Stuart Baldwin has her as Willa of Tuscany, whose father was Arnulf.