9 Things to know About: St. Peter Canisius
- Details
- 19 December 2025
By Andrew Winter
1.
Peter Canisius (kuh-NIH-see-us) was born in 1521 in Holland, on the heels of the outbreak of the Protestant Revolt. He showed promise as a young student, earning his master’s degree at Cologne at 19 years of age. His feast is celebrated Dec. 21.
St. Peter Canisius | Public domain
2.
At Mainz a few years later, he met Father Peter Faber, one of Ignatius of Loyola’s first Jesuit followers. While on a 30-day retreat with Faber as his director, Peter Canisius heard the call to become a Jesuit, and became the eighth member of the order in 1543.
3.
He quickly rose in the ranks of the Jesuits, and eventually Peter became the first Jesuit provincial of Germany. He held this office for 14 years and proved a champion of the Counter-Reformation—writing, studying, and preaching on behalf of the Catholic Faith against the new Protestantism.
4.
In his lifetime, Peter wrote 1,400 letters encouraging the Counter-Reformation movement. He also wrote 37 books.
5.
Peter founded 18 colleges and several seminaries, and taught at a Jesuit college in Messina, Sicily.
6.
During his lifetime, Peter’s most influential book was his Catechism. Before his death in 1596 it had already gone through 200 printings. He also wrote a Shorter Catechism for high school students and a Small Catechism for Catholics for children.
7.
Peter’s ministry was marked by a love for the poor and the sick, and he often visited hospitals. His care for the sick became most prominent during a plague in Vienna. When the people saw his wonderful zeal and care of the dying, they wanted to make him bishop of Vienna, but he refused.
8.
Peter was a confidant of three popes and one emperor, and while he was attending a part of the Council of Trent served as a personal advisor to the cardinal of Augsburg.
9.
Peter holds the title “Second Apostle of Germany” after St. Bonaface, the original apostle of Germany. Boniface was the first missionary to convert the early pagan Germany in the 8th century. Peter, thanks to his incredible energy in reforming Germany, holds a place next to this great missionary. Peter Canisius was canonized in 1925, and simultaneously named a Doctor of the Church.
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