Education
Having studied philosophy at Prague, he pursued his theological and juridical studies at the University of Bologna, after which he returned to Cracow, where he held the office of canon and custodian of the church of Sandomierz.
Having studied philosophy at Prague, he pursued his theological and juridical studies at the University of Bologna, after which he returned to Cracow, where he held the office of canon and custodian of the church of Sandomierz.
After and abbreviated novitiate Ceslaus, Hyacinth and their companions received the religious habit of the Order from Saint Dominic himself in 1220. Their novitiate completed, Saint Dominic sent the young friars back as missionaries to their own country. Establishing a friary at Friesach in Austria, they proceeded to Cracow whence Ceslaus was sent by Saint Hyacinth to Prague, the metropolis of Bohemia.
Labouring with much fruit throughout the Diocese of Prague, Ceslaus went to Wrocław, where he founded a large priory, and then extended his apostolic labours over a vast territory, embracing Bohemia, Poland, Pomerania, and Saxony.
Sometime after the death of Saint Hyacinth he was chosen the Provincial Superior for Poland. Whilst he was superior of the convent of Wrocław all Poland was threatened by the Mongols.
The city of Wrocław being besieged, the people sought the aid of Blessed Ceslaus, who by his prayers miraculously averted the impending calamity. Four persons are said to have been raised to life by him.
He died at Wrocław. Having always been venerated as a blessed, his cult was finally confirmed by Pope Clement XI in 1713.
His head has been recently reconstructed from his (alleged) skull.