Duchy of Warsaw (Middle Ages)
Duchy of Warsaw | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1310–1370 1381–1488 | |||||||||||
The map of the political division of Masovia between 1313 and 1345, including the Duchy of Warsaw. | |||||||||||
| Status | Fiefdom within the Kingdom of Poland (1310–1320) Fiefdom of the United Kingdom of Poland (1320–1385) Fiefdom of the Crown of the Kingdom of Poland (1386–1488) | ||||||||||
| Capital | Warsaw | ||||||||||
| Official languages | Polish, Latin | ||||||||||
| Religion | Roman Catholic | ||||||||||
| Government | Feudal duchy | ||||||||||
| Duke | |||||||||||
• 1310–1313 (first of the first state) | Siemowit II of Masovia | ||||||||||
• 1355–1370 (last of the second state) | Siemowit III | ||||||||||
• 1381–1429 (first of the second state) | Janusz I of Warsaw | ||||||||||
• 1471–1481 (last of the last state) | Bolesław V of Warsaw | ||||||||||
| Historical era | High Middle Ages | ||||||||||
• Partition of the Duchy of Masovia | 1310 | ||||||||||
• Unification of the Duchy of Masovia | 5 November 1370 | ||||||||||
• Partition of the Duchy of Masovia | June 1381 | ||||||||||
• Incorporation into the Duchy of Czersk | 1488 | ||||||||||
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The Duchy of Warsaw was a feudal district duchy in Masovia, centered on the Warsaw Land. Its capital was Warsaw.
The state was established in 1310, in the partition of the Duchy of Masovia, with duke Siemowit II of Masovia becoming its first leader. It existed until 5 November 1370, when, under the rule of duke Siemowit III, duchies of Czersk, Rawa, and Warsaw were unified into the Duchy of Masovia. It was again re-established in June 1381, in the partition of the Duchy of Masovia, with duke Janusz I of Warsaw as its first leader. It existed until 1488, when it got incorporated into the Duchy of Czersk.
From 1310 to 1320, it was a fiefdom within the Kingdom of Poland, and from 1320 to 1385, a fiefdom of the United Kingdom of Poland, and from 1386 to 1488, a fiefdom of the Crown of the Kingdom of Poland.