Battle of Hegra Fortress
Holtermann leads the defence of Hegra Fortress against German attacks in central Norway.
Role range: 1939-1945
Historical biography archive · Updated 2026-11-03
Hans Reidar Holtermann Biography and Timeline
Follow Hans Reidar Holtermann through 2 dated historical records for Norway.
Hans Reidar Holtermann, historical timeline
A chronological timeline drawn from matching World History Database records.
2Distinct records
1 of 1Page
1940–1940Years on this page
1940
Surrender of Hegra Fortress
Holtermann surrenders Hegra Fortress after southern Norway collapses and further resistance becomes impossible.
Role range: 1939-1945
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.