Monuments in the Basilica of Santa Maria del Popolo
The long time gap is explained by the fact that the cardinal was buried in the Old St. Peter's Basilica together with his uncle and benefactor, Cardinal Antonio Pallavicini Gentili (Antoniotto). In 1596 their bodies were relocated to the cemetery Santa Maria del Popolo where Antoniotto's monument was set up and later transferred to the Montemirabile Chapel. Philipp Zitzlsperger calls this a particularly instructive example of the separation of the body and the tomb which increasingly came to be the norm in Rome from the second half of the 16th century because the location of the cardinal's corpse has not been established but the transferral of the remains was reason enough to the relatives to erect a cenotaph in the church itself.
Santa Maria del Popolo
The year of completion is indicated on the inscriptions above the side doors of the façade. The one on the left reads "SIXTUS·PP·IIII·FVNDAVIT·1477", the other on the right reads "SIXTUS·PP·IIII·PONT·MAX·1477". Jacopo da Volterra recorded in his diary that the pope visited the church that "he rebuilt from the ground up a few years ago" in 1480. The pope was so strongly attached to the church, that he went there to pray every Saturday and celebrated mass in the papal chapel every year on September 6, the feast of the Nativity of the Virgin. On 2 June 1481 when the rumour about the death of Mehmed the Conqueror was confirmed, the pope went to the Vespers at Santa Maria del Popolo in thanksgiving with the cardinals and the ambassadors. Another occasion when the pope celebrated an important event in the basilica was the victory of the papal troops against the Neapolitans at Campomorto on 21 August 1482.