Canonization of Stanislaus of Szczepanów

Date: September 8, 1253 • Location: Rome, Italy

Pope Innocent IV canonises Stanislaus of Szczepanów, who was killed by King Bolesław II.

Pope Innocent IV, born Sinibaldo Fieschi, was head of the Catholic Church and ruler of the Papal States from 25 June 1243 to his death in 1254.

This milestone marked a defining occurrence in Italy's and world history, leaving an indelible imprint on societal development, international relations, and cultural memory. Its enduring ramifications continue to be examined and commemorated by historians and scholars across the globe.