Saint Gall
c. 550 AD — c. 645 AD · Feast day: October 16
Saint Gall crossed from Ireland to Gaul as one of twelve disciples of the great Columbanus, then broke with his master to become a hermit in a Swiss wilderness — a choice that outlasted him by centuries. The monastery founded at his hermitage site became one of medieval Europe's greatest libraries, and a Swiss city still bears his name.