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

Its capital city was Bydgoszcz.

Following the Decree of 19 December 1807,^[1] the area was further divided onto 10 counties (powiats).

Sources

Jacek Arkadiusz Goclon, Polska na królu pruskim zdobyta, Wydawnictwo Uniwersytetu Wrocławskiego, Wrocław 2002.
Mieczysław Bandurka, Zmiany administracyjne i terytorialne ziem województwa łódzkiego w XIX i XX wieku, NDAP, UW w Łodzi, AP w Łodzi, Łódź 1995.

References

^ See the Polish Wikipedia Polish article: pl:Podział administracyjny Księstwa Warszawskiego

Historical administrative divisions of Greater Poland

12–13th century	Duchy of Greater Poland
until 1768	Poznań / Kalisz Voivodeships
until 1793	Poznań / Kalisz / Gniezno Voivodeships Netze District
until 1806	South Prussia
until 1815	Poznań / Kalisz / Bydgoszcz Departments
until 1837 1848	Kalisz Grand Duchy of Posen

until 1918	Province of Posen Kalisz / Warsaw Governorates
until 1939	Poznań / Łódź Voivodeships Posen-West Prussia
until 1945	Reichsgau Wartheland
until 1975	Poznań Voivodeship
until 1998	Poznań / Kalisz / Leszno / Konin / Piła Voivodeships
since 1999	Greater Poland Voivodeship