Przemysl, together with many Polish bishops and princes, participates on May 8, 1254, at Kraków, in the canonization of Stanislaus of Szczepanów, a Bishop of Kraków known chiefly for having been martyred by Polish King Boleslaw II the Bold in 1079.

The first native Polish saint, Stanislaus is venerated in the Roman Catholic Church as Saint Stanislaus the Martyr (as distinct from Saint Stanislaus Kostka).