October–December 1590 conclave

Papal conclave
October–December 1590
Dates and location
8 October – 5 December 1590
Apostolic Palace, Papal States
Key officials
DeanGiovanni Antonio Serbelloni
Sub-deanAlfonso Gesualdo
CamerlengoEnrico Caetani
ProtopriestMark Sittich von Hohenems
ProtodeaconAndreas 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.