From a sede site:
"Cardinal Journet, in his The Church Of The Word Incarnate (Vol. 1, p. 484, trans. A. H. C. Downes, Sheed & Ward 1955) offers the following information about these letters of Savonarola: 'In a study in the "Revue Thomiste" (1900, p. 631, "Lettres de Savonarole aux princes chretiens pour la reunion d'un concile"), P. Hurtaud, O.P., has entered a powerful plea in the case - still open - of the "Piagnoni". He makes reference to the explanation of Roman theologians prior to Cajetan, according to which a Pope who fell into heresy would be deposed "ipso facto": the Council concerned would have only to put on record the fact of heresy and notify the Church that the Pope involved had forfeited his primacy. Savonarola, he says, regarded Alexander VI as having lost his faith. "The Lord, moved to anger by this intolerable corruption, has, for some time past, allowed the Church to be without a pastor. For I bear witness in the name of God that this Alexander VI is in no way Pope and cannot be. For quite apart from the execrable crime of simony, by which he got possession of the [papal] tiara through a sacrilegious bargaining, and by which every day he puts up to auction and knocks down to the highest bidder ecclesiastical benefices, and quite apart from his other vices - well-known to all - which I will pass over in silence, this I declare in the first place and affirm it with all certitude, that the man is not a Christian, he does not even believe any longer that there is a God; he goes beyond the final limits of infidelity and impiety" (Letter to the Emperor). [Footnote : These were neither new nor isolated accusations. cf. Schnitzer, "Savonarola", Italian translation by E. Rutili, Milan, 1931, vol. ii, p. 303.]"
Questions to sedes:
1. Was Savonarola wrong in thinking the Pope was a Heretic and an Atheist, by private judgment? If so, how do you know for sure that you also may not be wrong?
2. If you claim Savonarola the SedeVacantist was right, how do you explain that the Catholic Church judged otherwise? Cardinal Billot says this.
Thoughts?