Duchy of Silesia ended in 1918.
Duchy of Silesia was created in 1163.
Silesia Province ended in 1941.
Austrian Silesia ended in 1918.
New Silesia ended in 1807.
Duchy of Württemberg ended in 1806.
Duchy of Neopatria ended in 1390.
Duchy of Zator ended in 1919.
Duchy of Limburg ended in 1794.
Duchy of Salzburg ended in 1918.
Duchy of Ferrara ended in 1597.
Duchy of Holstein ended in 1866.
Duchy of Jülich ended in 1815.