Son of Cristoforo Boncompagni and Angela Marescalchi, he became pope in 1572. He fathered a son before entering an ecclesiastical career. He introduced the Gregorian calendar, still in use today.

GREGORIUS XIII
2,90 €

2,90 €
Son of Cristoforo Boncompagni and Angela Marescalchi, he became pope in 1572. He fathered a son before entering an ecclesiastical career. He introduced the Gregorian calendar, still in use today.