Fastre De Oisy

Fastre De was born about 1080 in Of,Oizy,Namur,Belgium.  Fastre De's father was Fastre De Oisy and his mother was Ada Or Ide De Avesnes. He had two brothers named Gossuin De and Mr. De.  He was the oldest of the three children. He had a half-brother named Fastre II de.  He died in 1111.

They had a son and a daughter, named Wauthier De and Sara De.