Jean was born about 1250 in Lokeren, the son of unknown parents.
His wife was Jeanette de Coucy, who he married in ABT 1275. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1250 |
|
Note 1
Guillaume IV de Béthune, b. Abt 1228 & Beatrix d' Hebuterne, b. Abt 1233