Duke of Racibórz Duke of Koźle
He was the eldest child and only son of Duke Przemysław of Racibórz by his wife Anna, daughter of Duke Konrad II of Masovia. After his father"s death in 1306, Leszek succeeded him in the Duchy of Racibórz. But, because he was underage at that, he was placed under the regency of his uncle Mieszko I, Duke of Cieszyn until 1308.
On 19 February 1327, together with other Silesian rulers, Leszek paid homage to King John of Bohemia in Opawa. In 1332, Leszek married with Agnes (ca 1321 – 7 July 1362), daughter of Duke Henry IV of Głogów-Żagań. The union proved to be childless.
Leszek died in 1336 and was buried in the Dominican monastery of Racibórz.
Koźle returned to Duke Władysław of Bytom after the payment of a monetary compensation to Euphemia, Leszek"s youngest sister.
