Simon I de , Count d'Ailly Clermont
Simon I de , Count d'Ailly was born about 1153 in Clermont,Beauvais,Oise,Picardy, France.

 Mahaut d'Ailly de Breteuil
Mahaut d'Ailly de was born about 1159 in Breteuil,Eure,Normandy,France.

 Raoul I de , Seigneur d'Ailly Clermont
Raoul I de , Seigneur d'Ailly was born about 1175 in Clermont,Beauvais,Oise,Picardy, France.  He died in 1214 in Clermont,Beauvais,Oise,Picardy, France.