Sometime after the death of 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 Ceslaus, who by his prayers miraculously averted the impending calamity.
After Hyacinth's death, Ceslaus became the Provincial Superior of Poland. During this time, all of Poland was under threat from the Mongols. The city of Wrocław was besieged, prompting the people to seek Ceslaus' assistance through prayer, which miraculously averted the impending disaster.