Feast day: February 21

St. Peter Damian

Bishop & Doctor of the Church · 1007–1072

Patron of Reformers

Orphan turned monk turned cardinal who fought corruption in the medieval Church with fearless letters and reforms.

He begged to retire back to his monastery so often that the pope finally relented — history's most reluctant cardinal.

Image: Srnec at English Wikipedia (CC BY 2.5), via Wikimedia Commons.