| Papal conclave August 1458 | |
|---|---|
| Dates and location | |
| 16–19 August 1458 Apostolic Palace, Papal States | |
| Key officials | |
| Dean | Giorgio Fieschi |
| Camerlengo | Ludovico Trevisan |
| Protopriest | Petrus von Schaumberg |
| Protodeacon | Prospero Colonna |
| Elected pope | |
| Enea Silvio Bartolomeo Piccolomini Name taken: Pius II | |
 | |
The 1458 papal conclave (August 16–19), convened after the death of Pope Callixtus III, elected as his successor Cardinal Enea Silvio Piccolomini who took the name Pius II.