Skip to content

Because of You, 2.2 Million Students Are Being Formed in the Faith

Because of generous supporters like you, Catholic Online School has already delivered free, faithful Catholic education to over 2.2 million students across 193 countries. In an age of noise and algorithms, you are helping form souls with truth, prayer, Scripture, and Christ.

If everyone who reads this gave just $5 — the cost of a coffee — we could reach even more families and keep this life-changing formation free for all. Be Courageous. Be Catholic. Stand with us today.

DONATE TODAY >

St. John of Dukla

Facts

Feastday: September 28
Patron: of Poland and Lithuania
Birth: 1414
Death: 1484
Beatified: January 23, 1733 by Pope Clement XII
Canonized: Pope John Paul II

Author and Publisher - Catholic Online
Printable Catholic Saints PDFs
Shop St. John of Dukla

Image of St. John of Dukla

John of Dukla is a saint in the Roman Catholic Church. He is one of the patron saints of Poland and Lithuania.

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.

Sister Sara Has One Message for Every Catholic Family This June


Donate Now

Catholic Online Logo

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.