 Along with fears of an uprising of the turbulent Parisians, the smells and bad air of central Paris were a major reason why Charles V moved the royal residence permanently from the Île de la Cité outside the old city walls to a new residence, the Hotel Saint-Pol, near the new Bastille fortress.The calendar of Parisians in the Middle Ages was filled with holidays and events that were widely and enthusiastically celebrated, perhaps because of the precarious lives of the ordinary populace.In addition to holidays for Christmas, Easter, Pentecost and Ascension, each of the guilds and corporations of the city had its own patron saint and celebrated that saint's feast day.