POPE
Pope Gregory XIII
Pope, Bishop of Rome
Pope Gregory XIII, who reigned as Roman Pontiff from 1572–1585.
background
Pope Gregory XIII reformed the calendar in 1582, producing the Gregorian calendar still in use today, and was a great patron of the Jesuit colleges and the Catholic Reformation.
summary
Pope Gregory XIII, who reigned as Roman Pontiff from 1572–1585.
papacy Start
1572
papacy End
1585
birth Name
Ugo Boncompagni