Johan was the son of unknown parents. The date and place of his birth have not been found.
He died after 1314. The place is not known.
His wife is not known. They were married, but the date and place have not been found. Their only known child was Markvard II (?-<1335).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | AFT 1314 |
|