Cardinal Lamberto left Rome with a large sum of money and several documents. Fearing that their corruption will be exposed, Keinszig, Lucchesi, and Gilday plot to murder the Pope. Gilday poisons the pontiff's tea, killing him in his sleep. The character of Lamberto and the film's depiction of the events which led to his murder are based upon one of the conspiracy theories surrounding the sudden death of the real-life Pope John Paul I, Albino Luciani. Like the Lamberto character, Luciani was discovered dead in his bed in 1978, 33 days after his election to the papacy. Various theories, such as the
History of the papacy at Viterbo and Orvieto." During this period, seven popes, all French, resided in Avignon starting in 1309: Pope Clement V (1305–14), Pope John XXII (1316–34), Pope Benedict XII (1334–42), Pope Clement VI (1342–52), Pope Innocent VI (1352–62), Pope Urban V (1362–70), Pope Gregory XI (1370–78). The papacy was controlled by the French King in this time. In 1378, Gregory XI moved the papal residence back to Rome and died there. After seventy years in France the papal curia was naturally French in its ways and, to a large extent, in its staff. Back in Rome some degree of tension between