(Bolonia, 1554 - 1623)
"Gregorio XV (Bolonia, 9 de enero de 1554 Roma, 8 de julio de 1623) fue el papa n.º 234 de la Iglesia católica, entre 1621 y 1623."
"Pope Gregory XV (Latin: Gregorius XV; 9 January 1554 8 July 1623), born Alessandro Ludovisi, was head of the Catholic Church and ruler of the Papal States from 9 February 1621 to his death in 1623."