Guilbert (de Pershale) De Corbeil
Guilbert (de Pershale) was born about 1050 in Corbeil, , , France.  He died on August 14th, 1087.  He was buried in August 1087.

 Arbella Loup D Avranches
Arbella Loup was born about 1055.

 Robert De Pershale
Robert was born about 1072 in Corbeil, , , France.