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
Avignon Papacy the papacy to raise charges against the popes; King Philippe of France employed this strategy, as did Louis IV, Holy Roman Emperor. In his conflict with the latter, Pope John XXII excommunicated two leading philosophers, Marsilius of Padua and William of Ockham, who were outspoken critics of the papacy, and who had found refuge with Louis IV in Munich. In response, William charged the pope with seventy errors and seven heresies. The proceedings against the Knights Templar in the Council of Vienne are representative of this time, reflecting the various powers and their relationships. In 1314 the collegium at Vienne