Duchy of Prussia
Duchy of Prussia | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1525–1701 | |||||||||
Flag
(1525–1657) | |||||||||
The Duchy of Prussia (yellow) | |||||||||
| Status | Fief of Poland (until 1657) Part of Brandenburg-Prussia (from 1618) | ||||||||
| Capital | Königsberg 54°50′N 21°20′E / 54.833°N 21.333°E | ||||||||
| Common languages | Low German, German, Polish, Lithuanian, Old Prussian | ||||||||
| Religion | Lutheranism | ||||||||
| Demonym(s) | Prussian | ||||||||
| Government | Feudal monarchy | ||||||||
| Duke | |||||||||
• 1525–1568 | Albert | ||||||||
• 1568–1618 | Albert Frederick | ||||||||
• 1618–1619 | John Sigismund | ||||||||
• 1619–1640 | George William | ||||||||
• 1640–1688 | Frederick William | ||||||||
• 1688–1701 | Frederick | ||||||||
| Legislature | Estates | ||||||||
| Historical era | Early modern period | ||||||||
| 10 April 1525 | |||||||||
| 1657 | |||||||||
| 1701 | |||||||||
| Area | |||||||||
• Total | 30,000 km2 (12,000 sq mi) | ||||||||
| Currency | Thaler (1525-1701) | ||||||||
| |||||||||
| Today part of | Lithuania Poland Russia | ||||||||
The Duchy of Prussia (German: Herzogtum Preußen, Polish: Księstwo Pruskie, Lithuanian: Prūsijos kunigaikštystė) or Ducal Prussia (German: Herzogliches Preußen; Polish: Prusy Książęce) was a duchy in the region of Prussia established as a result of secularization of the Monastic Prussia, the territory that remained under the control of the State of the Teutonic Order until the Protestant Reformation in 1525.