October–December 1590 conclave
| Papal conclave October–December 1590 | |
|---|---|
| Dates and location | |
| 8 October – 5 December 1590 Apostolic Palace, Papal States | |
| Key officials | |
| Dean | Giovanni Antonio Serbelloni |
| Sub-dean | Alfonso Gesualdo |
| Camerlengo | Enrico Caetani |
| Protopriest | Mark Sittich von Hohenems |
| Protodeacon | Andreas von Österreich |
| Election | |
| Vetoed | |
| Elected pope | |
| Niccolò Sfondrati Name taken: Gregory XIV | |
The October to December 1590 papal conclave (8 October – 5 December) was the second conclave of 1590, and the one during which Gregory XIV was elected as the successor of Urban VII. This conclave was marked by unprecedented royal interference from Philip II of Spain.