Bl. Ceslaus
Facts
Birth: 1184
Death: 1242
Author and Publisher - Catholic Online
Printable Catholic Saints PDFs
Shop Bl. Ceslaus
Blessed Ceslaus was the son of a noble Silesian family and possibly St. Hyacinth's brother. Hee was ordained, became a canon in Cracow, Poland, a provost at St. Mary's in Sandomir, went to Rome, and was received into the Dominicans by St. Dominic. Blessed Ceslaus preached in Poland, Silesia, Pomerania, and Bohemia, was spiritual adviser to St. Hedwig, was elected provincial of the Polish province, and became prior of a priory at Breslau. His prayers were credited for the defeat of Tartans attacking Breslau in Silesia during their invasion of 1240. His cult was confirmed in 1713. His feast day is July 17.
Come Grow With Us
Sign up and walk the Catholic journey with millions around the world.
Receive inspiring emails on saints, daily readings, and free faith-building resources—no cost, ever.
Catholic Online Is Free. But We Need Your Help.
Please Watch
- 7 Morning Prayers
- Mysteries of the Rosary
- Litany of the Bl. Virgin Mary
- Popular Saints
- Popular Prayers
- Female Saints
- Saint Feast Days by Month
- Stations of the Cross
- St. Francis of Assisi
- St. Michael the Archangel
- The Apostles' Creed
- Unfailing Prayer to St. Anthony
- Pray the Rosary
Copyright 2026 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2026 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.
Catholic Online is a Project of Your Catholic Voice Foundation, a Not-for-Profit Corporation. Your Catholic Voice Foundation has been granted a recognition of tax exemption under Section 501(c)(3) of the Internal Revenue Code. Federal Tax Identification Number: 81-0596847. Your gift is tax-deductible as allowed by law.