Isaac was born about 1290, the son of unknown parents. The place is not known.
His wife was Béatrix de Wavrin. They were married, but the date and place have not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1290 |
|
Note 1
Jean d' Ollehain, II, d. Aft 1316 & Isabelle de Cottenes