Duchy of Bielsko

The Duchy of Bielsko (German: freie Standesherrschaft Bielitz, Fürstentum Bielitz, Herzogtum Bielitz, Latin: status minores Bilicensis, status maiores Bilicensis, ducatus Bilicensis, Polish: księstwo bielskie,Czech: Bílské knížectví ) was one of the duchies of Silesia.

In 1752, the State Country (Status Maiores) of Bielsko was purchased by Aleksander Józef Sulkowski.

In that same year, the State Country was changed to the status of a lower principality (Fürstentum).

On November 2, 1754, Queen Maria Theresa of Austria created the Principality of Bielsko (Herzogtum Bielitz).

The next owners of the Principality of Bielsko had the right to the title of Herzog (Duke), during which time the remaining members of the family counted themselves amongst the lesser noble status of Fürst (Prince).