Duke of Poland
Succeeds as Duke of Poland
Role range: 1146-1173
Historical biography archive · Updated 2026-11-03
Boleslaw IV Biography and Timeline
Follow Boleslaw IV through 4 dated historical records for Poland.
Boleslaw IV, historical timeline
A chronological timeline drawn from matching World History Database records.
4Distinct records
1 of 1Page
1146–1157Years on this page
1146
Succession
Succeeds as Duke of Poland
Role range: 1146-1173
1157
Diet
The Diet of Besancon allows Boleslaw to be called King
Role range: 1146-1173
Invasion of Poland
Frederick I Invades Poland & forces the submission of Duke Boleslaw IV
Role range: 1152-1190
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.