Pope Gregory XIII 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
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
Pope Innocent IX, born Giovanni Antonio Facchinetti, was head of the Catholic Church and ruler of the Papal States from 29 October to 30 December 1591.
Portrait after Hieronymus Wierix, early 17th century
Portrait engraving of Innocent IX by Agostino Carracci, 1591
Medal of Innocent IX (1591).
Tomb of Innocent IX in the Vatican Grottoes.