Johan was born about 1370, the son of Peter Torstensson Djäkn but his mother is unknown. The place is not known.
His wife was Kristina Torstensdotter Oxenstierna. They were married, but the date and place have not been found. Their only known child was Bengta Johansdotter (c1405-?).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1370 |
|