On 8 February 1501, Pope Alexander also appointed Piccolomini, in his capacity as Protodeacon, to a commission to take charge of the income from the tithe ("decuma"), and dispensing it for yet another contemplated crusade against the Turks. In 1502 he commissioned a library with access from an aisle of the Duomo di Siena that was intended to house the library of humanist texts assembled by his uncle. Francesco commissioned the artist Pinturicchio to fresco its vault and ten narrative panels along the walls, depicting scenes from the life of Aeneas Silvius Piccolomini. Its iconography illustrating the donor's career gives an edited version of Pius II's life, passing over his former support of the Antipope Felix V. Though Pinturicchio labored for five years, the books never reached their splendid destination; yet the Piccolomini Library is a monument of the High Renaissance in Siena. Some of Pope Pius III's most famous portraits can be viewed in the Louvre Museum. Pope Alexander VI died on 18 August 1503, and amid the disturbances consequent upon his death, it took the combined pressures of all the ambassadors in Rome to induce Cesare Borgia to withdraw from the city, so that an unpressured conclave might take place. Despite urgent pleas of the cardinals to stay away, both the Orsini and the Colonna factions entered the city with troops, intending to avenge old and new grievances. Because of these negotiations, the Conclave did not begin until 16 September. Cardinal Piccolomini was elected on 22 September 1503 and he named himself "Pius III" after his uncle Pius II. This selection can be seen as a compromise between factions, Borgia and della Rovere, picking a frail cardinal with long experience in the Roman Curia over the kin of either Sixtus IV or Alexander VI. On 25 September the new pontiff held an unusual Consistory meeting of cardinals and other officials, including the ambassadors of several states. Normally, a pope did not hold such meetings until after his coronation, but Pius III was faced with an emergency, and he was being hard pressed by the Spanish cardinals. A French army, which was nominally under the command of Cesare Borgia, who was ill and in bed, was demanding passage through Rome in order to attack the Spanish government in Naples. Naples was a papal fief, which complicated diplomacy.