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
Pope Gregory I papacy for government, ignoring the rump state at Constantinople, which had only disrespect for Gregory, calling him a fool for his pacifist dealings with the Lombards. The office of urban prefect went without candidates. From the time of Gregory the Great to the rise of Italian nationalism the papacy was most influential presence in Italy. John the Deacon wrote that Pope Gregory I made a general revision of the liturgy of the Pre-Tridentine Mass, "removing many things, changing a few, adding some". In letters, Gregory remarks that he moved the "Pater Noster" (Our Father) to immediately after the Roman Canon