Opava

The Duchy of Opava was a Bohemian fief in Silesia, ruled by a Přemyslid branch. In 1337 Duke Nicholas II also held Racibórz, inherited after his brother-in-law Leszek died in 1336.

Nicholas's sons divided the duchies, and successive partitions reduced Opava. In 1462 the Přemyslids sold their shares to George of Poděbrady. Emperor Matthias granted the duchy to Karl I of Liechtenstein in 1614; the 1742 Treaty of Breslau divided it between Prussia and Austrian Silesia, leaving Opava in the latter.