Jan was born in 1412 in Helfenstein, the son of unknown parents.
His wife was Katerina Kdulincova. They were married, but the date and place have not been found. Their only known child was Johanka (1438-1515).
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 1412 |
|