Duchy of Kuyavia

Duchy of Kuyavia Księstwo kujawskie (Polish) Ducatus Cuiaviensis (Latin)
1233–1392
Coat of arms
Duchy of Kuyavia within Kingdom of Poland in 13th century.
Status	Independent state
Capital	Inowrocław
Official languages	Polish, Latin
Religion	Roman Catholic
Government	District principality
Duke
• 1233–1267	Casimir I of Kuyavia
Historical era	High Middle Ages
• Separation from the Duchy of Masovia	1233
• Partition into duchies of Inowrocław and Brześć Kujawski	1392
Preceded by Succeeded by Duchy of Masovia Duchy of Inowrocław Duchy of Brześć Kujawski Duchy of Łęczyca Duchy of Sieradz
Today part of	Poland

The Duchy of Kuyavia (Polish: Księstwo kujawskie; Latin: Ducatus Cuiaviensis) was a district principality in Central Europe, created in the course of the 13th century in the region of modern-day Kuyavia after the inheritance of the Kingdom of Poland in 1138 into partial duchies through the will and testament of Duke Bolesław III Wrymouth.