Subdivisions of the Duchy of WarsawW
Subdivisions of the Duchy of Warsaw

Subdivisions of the Duchy of Warsaw were based on departments that were headed by prefects. The subsidivions were based on the French model following the erection of the Duchy of Warsaw by Napoleon. The departments were in turn subdivided into traditional Polish powiats (counties). Initially six departments were created out of the province of South Prussia in the Kingdom of Prussia. After the 1809 Polish–Austrian War, and the Treaty of Schönbrunn, their number increased to ten. Each department was named after its capital city.

Bydgoszcz DepartmentW
Bydgoszcz Department

Bydgoszcz Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1806–1815.

Kalisz DepartmentW
Kalisz Department

Kalisz Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1807–1815.

Kraków DepartmentW
Kraków Department

Kraków Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1809–1815.

Łomża DepartmentW
Łomża Department

Łomża Department was an administrative division and local government in the Polish Duchy of Warsaw in the years 1807–15. The Department comprised 10 counties and had its capital at Łomża.

Lublin DepartmentW
Lublin Department

The Lublin Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1810-1815. Its capital was Lublin. The division contained 10 counties. In 1815 it was transformed into the Lublin Voivodeship.

Płock DepartmentW
Płock Department

Płock Department was a unit of administrative division and local government in the Polish Duchy of Warsaw from 1806 to 1815.

Poznań DepartmentW
Poznań Department

Poznań Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1806-1815.

Radom DepartmentW
Radom Department

Radom Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1809–1815.

Siedlce DepartmentW
Siedlce Department

Siedlce Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1809–1815.

Warsaw DepartmentW
Warsaw Department

Warsaw Department was a unit of administrative division and local government in Polish Duchy of Warsaw in years 1806–1815.