Jean was the son of unknown parents. The date and place of his birth have not been found.
He died in BET 1366 AND 1369. The place is not known.
His wife was Louise de Montfaucon, who he married in ABT 1343. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | BET 1366 AND 1369 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | sire de Cossonay |
Note 1
fils de Louis Ier de Cossonay et Isabelle de Grandson