Duke of Poland
Succeeds as Duke of Poland
Role range: 1228-1229
Historical biography archive · Updated 2026-11-03
Henry I Biography and Timeline
Follow Henry I through 6 dated historical records for Poland.
Henry I, historical timeline
A chronological timeline drawn from matching World History Database records.
6Distinct records
1 of 1Page
1228–1232Years on this page
1228
Succession
Succeeds as Duke of Poland
Role range: 1228-1229
1229
Abdication
Henry I is deposed
Role range: 1228-1229
1232
Duke of Poland
Succeeds as Duke of Poland, restored
Role range: 1232-1238
Restoration
Succeeds as Duke of Poland, restored
Role range: 1232-1238
Succession
Succeeds as Duke of Poland, restored
Role range: 1232-1238
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.