• Born date: 1502-01-07
  • Born in: Bologna
  • Death date: 1585-04-10
  • Death in: Rome
Pope Gregory XIII

Pope Gregory XIII (Latin: Gregorius XIII; 7 January 1502 – 10 April 1585), born Ugo Boncompagni, was Pope from 13 May 1572 to his death in 1585. He is best known for commissioning and being the namesake for the Gregorian calendar, which remains the internationally accepted civil calendar to this day.During his pontificate, Gregory fostered cultural patronages associated with his papacy.