John of Capistrano

John of Capistrano, OFM (, , , ; 24 June 1386 – 23 October 1456) was an Italian Franciscan friar and Catholic priest from the town of Capestrano, Abruzzo. Famous as a preacher, theologian, and inquisitor, he earned himself the nickname "the Soldier Saint" when in 1456 at age 70 he led a Crusade against the invading Ottoman Empire at the siege of Belgrade with the Hungarian military commander John Hunyadi.

Elevated to sainthood, he is the patron saint of jurists and military chaplains, as well as the namesake of two Franciscan missions, one in Southern California and the other in San Antonio, Texas. Provided by Wikipedia