Guillaume III, Duke d' Alencon, Count of Pontieu & Montreuil
Birth:
Abt 1055
of Alencon, Orne, Basse Normandie, France
Death:
1172
FCID:6414:25794
Parents
Father:
Robert II de Alencon
Mother:
Agnes, Countess of Ponthieu, Countess of Shrewsbury
Marriage(s)

Alice (Helia) , Countess of Bourgogne, Duchess of Alencon
md.
Children
1.
Living