The 1572 papal conclave, convoked after the death of Pope Pius V, elected Cardinal Ugo Boncompagni, who took the name Gregory XIII.
1572 papal conclave
Pope Gregory XIII, born Ugo Boncompagni, was head of the Catholic Church and ruler of the Papal States from 13 May 1572 to his death in April 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.
Portrait by Bartolomeo Passarotti (c. 1586, Friedenstein Palace, Gotha)
Portrait of Gregory XIII by Lavinia Fontana (oil on canvas, private collection)
Detail of the tomb of Pope Gregory XIII celebrating the introduction of the Gregorian calendar.
Ugonottorum Strages medal