Wincenty Kadłubek
Wincenty Kadłubek (c. 1150–1223) was bishop of Kraków and the leading Polish scholar of his age. Educated at the Kraków cathedral school and then at Paris and Bologna, he was ordained before 1189 and served as provost of Sandomierz Cathedral. Consecrated bishop in 1208, he worked to reform the Kraków clergy.
He wrote the Chronica Polonorum, the first Polish history composed by a Pole and a cardinal source for early medieval Poland. In 1218 he resigned his see and retired to the Cistercian monastery at Jędrzejów, where he died in 1223. He was beatified in 1764.