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 Countess of Flanders, rather than giving dispensation to one of Edward III of England's sons to marry Margaret. This clearly showed the partisanship of the papacy; correspondingly, the respect for the church dropped. The most influential decision in the reign of Pope Gregory XI (1370–1378) was the return to Rome, beginning on 13 September 1376 and ending with his arrival on 17 January 1377. Although the Pope was French born and still under strong influence by the French King, the increasing conflict between factions friendly and hostile to the Pope posed a threat to the papal lands and to the