Episode 3 of 4

Accession of Frederick William IV

Name: Accession of Frederick William IV
Start: 1840-06-07
Location: Prussia

When: 7 June 1840
Where: Prussia
Part of: Death of Frederick William III of Prussia and accession of Frederick William IV

Frederick William IV succeeded his father as King of Prussia on 7 June 1840, maintaining the personal union with Neuchâtel.

The new king assumed the throne immediately upon his father's death. He retained the title of sovereign prince of Neuchâtel, a principality within the Swiss Confederation. His reign lasted until 1861. He had previously participated in the Wars of Liberation against Napoleon.

Sources

Frederick William IV Wikipedia, revision of 2026-06-09

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.