Papal conclave, October 1503

Coat of arms during the vacancy of the Holy See
Dates and location
October 1503 Apostolic Palace, Papal States
Election
Ballots	1
Elected Pope
Giuliano della Rovere (Name taken: Julius II)
← September 1503 1513 →

The papal conclave of October 1503 elected Giuliano della Rovere as Pope Julius II to succeed Pope Pius III. The conclave took place during the Italian Wars barely a month after the papal conclave, September 1503, and none of the electors had travelled far enough from Rome to miss the conclave. The number of participating cardinals was thirty-eight, the College of Cardinals having been reduced by the election of Piccolomini as Pius III, who did not elevate cardinals.

Mostly because of the lack of a conclave capitulation, the conclave took only ten hours, the shortest in history.

The previous conclave in September had been marked by the Italian Wars, surrounded by the forces of Louis XII of France, Ferdinand II of Aragon, and Cesare Borgia, the former cardinal-nephew of Pope Alexander VI. Georges d'Amboise had been the favorite of Louis XII, Piccolomini (who was the favorite of the bookmakers gambling on papal elections) had been elected, and the candidacy of della Rovere was also a strong papabile.

Pius III had died after just 26 days in office. This was insufficient time for the Cardinals to disperse very far, so they were all able to return for the new conclave.

The cardinal electors were the same as those that had convened in September, minus Piccolomini who had previously been elected, and then died.

In the month between the conclaves, della Rovere met with Cesare Borgia and the Spanish cardinals, whose support he lacked in the previous conclave, and assured them he would maintain Cesare's command of the papal army and territorial possessions in Italy. Cesare delivered the support of all eleven Spanish cardinals.