Robert II deMontgomery Comte D'Alencon
Robert II was born about 1039.  He died in 1119.

 Agnes Comtesse dePonthieu
Agnes Comtesse was born about 1066.

 William Talvace deMontgomery Comte D'Alençon
William Talvace was born about 1090 in Sussex. England.  He died on June 30th, 1171.