Janusz was the son of Bolesław IV von Massow but his mother is unknown. The date and place of his birth have not been found.
He died in 1495. The place is not known.
|
Janusz II von Massow |
Bolesław IV von Massow |
Bolesław III von Massow |
Janusz I von Massow |
+ | ||||
|
Danuta Anna of Lithuania |
+ | |||||||
|
Anna Ivanovna Holczanska |
| |||||||
| | ||||||||
| | | | ||||||
| | ||||||||
| | | |||||||
| |
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 1495 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | Książę płocki (prince of Plock) |