Duchy of Brunswick ended in 1918.
Duchy of Brunswick-Lüneburg ended in 1806.
Duchy of Brunswick was created in 1815.
Duchy of Brunswick-Lüneburg was created in 1235.
he was born in Bruswick, Duchy of Brunswick.
Duchy of Silesia ended in 1918.
Duchy of Zator ended in 1919.
Duchy of Limburg ended in 1794.
Duchy of Friuli ended in 828.
Duchy of Württemberg ended in 1806.
Duchy of Oels ended in 1884.
Duchy of the Archipelago ended in 1579.
Duchy of Bytom ended in 1498.