Gregory XI did not long survive this trip, dying in Rome on 27 March 1378.[12] He was buried the following day in the church of Santa Maria Nuova.[13] After his death the College of Cardinals was pressured by a Roman mob that broke into the voting chamber to force an Italian pope into the papacy.[14] The Italians chose Urban VI. Soon after being elected, Urban gained the Cardinals' enmity.[15] The cardinals withdrew from Rome to Fondi, where they annulled their election of Urban and elected a French pope, Clement VII,[15] before returning to Avignon in 1378.