THE DATE BEHIND THE NAME
Bolesław Jerzy of Mazovia
Polish noble (1308-1340)
Bolesław Jerzy of Mazovia was born in 1308 and died in 1340.
Born
in 1308
Died: in 1340
Source:
No external source identified
Synchronized from Wikidata on October 5, 2026.
Original calendar: Julian. This broad date cannot be represented as a single Gregorian date; the original value is shown.
- Professions
- aristocrat
More about Bolesław Jerzy of Mazovia
Family
- Sibling
- Casimir of Masovia
- Sibling
- Siemowit III, Duke of Masovia
- Father
- Trojden I, Duke of Masovia
All birth date sources
A source is P248 “stated in” or a non-Wikimedia reference URL. Import-only references do not qualify.
No external source identified
Synchronized from Wikidata on October 5, 2026. View Wikidata record