NameGeoffrey II Viscount Of Chateaudun, 30G Grandfather
Web Notes notes for Geoffrey II Viscount Of Chateaudun
Turton's "Plantagenet Ancestry", says he d. 1038 or 1058 (handwiting hard to decipher). Calls him VC de Chateaudun.
Stuart's "Royalty For Commoners (249:31), says he was also Seigneur de Nogent-le-Rotrou; d. bef. 1005.