Duchies of Silesia
divisions of the region of Silesia
Duchy of Nysa
Silesian duchy (1008–1850)
Duchy of Silesia
Medieval duchy in the historic region of Silesia (1138-1249/1335/1742)
Duchy of Legnica
Silesian duchy (1248–1675)
Duchy of Pless
historic territory in Upper Silesia
Duchy of Bytom
principality founded in 1284 as a result of the division of the Duchy of Opole