Roman Catholic Archdiocese of Clermont with the complicated business of Tetradia, the widow of one Desiderius, and her dealings with Count Eulalius. Pope Urban II came to Clermont in mid-November 1095 to preside at the Council which launched the First Crusade; Pope Paschal II visited the city in 1106; Callistus II on 19 May 1119; Innocent II from mid-November to early-December 1130, where he held a synod; Pope Alexander III from 13 to 19 August 1162, and again from 25 May to 25 June 1165; and, in 1166, Thomas Becket. It was also at Clermont that, in 1262, in presence of St. Louis, the marriage
Pope Pius II was not an eminent scholar. His Latin was fluent, but he knew little Greek. Still, his writings have many good qualities. Pope Pius II inaugurated an unusual urban project, perhaps the first city planning exercise in modern Europe. He refurbished his home town of Corsignano (province of Siena, Tuscany) and renamed it Pienza, after himself. A cathedral and palaces were built in the best style of the day to decorate the city. They survive to this day. Pope Pius II Pope Pius II (, ), born Enea Silvio Bartolomeo Piccolomini (; 18 October 1405 – 14 August 1464) was Pope