1458 Conclave
elected Pius II16–19 August 1458 · The early modern conclaves · Apostolic Palace, Papal States
Pope Callixtus III, the first pope of the House of Borgia, died on 6 August 1458. He was severely criticized due to his nepotism and devotion towards his compatriots of Catalonia, making him very unpopular among the rather xenophobic Roman populace.
Elected pope
Pius II
Enea Piccolomini
Succeeded
—
Duration
4 days
Cardinal electors
—
locked in under conclave rules
Key officials
| Dean | Giorgio Fieschi |
| Camerlengo | Ludovico Trevisan |
Ballot-by-ballot tallies are destroyed by design — the paper is burned in the stove whose smoke announces the result — so this entry records what the Church documents: the dates, the electors, the number of ballots where known, and the man who walked out onto the balcony.