The Raciborz branch of the State Archives of Katowice holds two copies of the prince’s of Raciborz Leszek diploma, issued on 21 January 1319 in the Raciborz castle. The first one was made on 1 February 1545 and the second on 29 January 1650. In the document the prince attests that Jan, son of Maciej, once a townsman of Raciborz, in his will bequeathed to the Dominicans in Raciborz villages of Rudnik and Strzybnik. Up to now the contents of the document have been known solely from regesta, as it has not been released in print.