Jean was the son of unknown parents. The date and place of his birth have not been found.
He died in 1310. The place is not known.
His wife was Helvis de Bauffremont, who he married in AFT 1272. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1310 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Flagey et de Bussières-sur-l'Ognon |
Note 1
fils de Etienne I, Baron d'Oiselay, la Villeneuve, Flagey, Frasne, & Clervans; et Clemence de Faucigney