William III, Count of Ponthieu
Count of Ponthieu
Years: 1093 - 1171
William III of Ponthieu (c. 1093 – 1171) also called William (II; III) Talvas. He is seigneur de Montgomery in Normandy and Count of Ponthieu.
William III of Ponthieu (c. 1093 – 1171) also called William (II; III) Talvas. He is seigneur de Montgomery in Normandy and Count of Ponthieu.