History of Brzezinka

Politically the village belonged then to the Duchy of Oświęcim, formed in 1315 in the process of feudal fragmentation of Poland and was ruled by a local branch of Piast dynasty. In 1327 the duchy became a fee of the Kingdom of Bohemia. In 1457 Jan IV of Oświęcim agreed to sell the duchy to the Polish Crown, and in the accompanying document issued on 21 February the village was mentioned as Brzesinka.

The territory of the Duchy of Oświęcim was