The seventh pope of this name was born Hildebrand and the first sent Augustine to England to spread Christianity.
One pope of this name supported the Second Desmond Rebellion, one of two measures he advocated to overthrow Elizabeth's rule in Ireland. Urban II called the Council of Piacenza (pee-uh-CHEN-zah) to flesh out a controversy that occurred during the rule of one pope of this name, for whom Henry IV did penance at Canossa after the Investiture Controversy. The seventh pope of this name was born Hildebrand and the first sent Augustine to England to spread Christianity. For 10 points, give this papal name whose holders popularized a namesake calendar and chant.
One pope of this name supported the Second Desmond Rebellion, one of two measures he advocated to overthrow Elizabeth's rule in Ireland.
{Gregory} [or Gregory {XIII}; or Gregory {VII}; or Gregory I]