o great importance, underwent extensive development during the time the seven Avignon popes and two anti-popes, Clement V to Benedict XIII made their residences there. To the north and south of the rock of the Doms, partly on the site of the Bishop's Palace, which had been enlarged by John XXII, was built the Palace of the Popes, in the form of an imposing fortress consisting of towers, linked to each other, and named as follows: De la Campane, de Trouillas, de la Glacière, de Saint-Jean, des Saints-Anges (Benedict XII), de la Gâche, de la Garde-Robe (Clement VI), de Saint-Laurent (Innocent VI). The Palace of the Popes belongs, in virtue of its severe architecture, to the Gothic art of the South of France. Other noble examples can be seen in the churches of St. Didier, St. Peter and St. Agricola, as well as the Clock Tower, and in the fortifications built between 1349 and 1368 for a distance of some three miles (5 km), and flanked by thirty-nine towers, all of which were erected or restored by the Roman Catholic Church. The frescoes that are painted on the interiors of the Palace of the Popes and the churches of Avignon were created primarily by artists from Siena.
The popes were followed to Avignon by agents (factores) of the great Italian banking-houses, who settled in the city as money-changers, as intermediaries between the Apostolic Chamber and its debtors, living in the most prosperous quarters of the city, which was known as the Exchange. A crowd of traders of all kinds brought to market the produce necessary for maintaining the numerous court and for the visitors who flocked to it; grain and wine from Provence, from the south of France, the Roussillon and the country around Lyon. Fish was brought from places as distant as Brittany; cloths, rich stuffs and tapestries came from Bruges and Tournai. We need only glance at the account-books of the Apostolic Chamber, still kept in the Vatican archives, to get an idea of the trade of which Avignon
