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.
San Lorenzo fuori le Mura
The Basilica Papale di San Lorenzo fuori le Mura (Papal Basilica of Saint Lawrence outside the Walls) is a Roman Catholic Papal minor basilica and parish church, located in Rome, Italy. The Basilica is one of the Seven Pilgrim Churches of Rome and one of the five former "patriarchal basilicas", each of which was assigned to the care of a Latin Church patriarchate. The Basilica was assigned to the Patriarchate of Jerusalem. The Basilica is the shrine of the tomb of its namesake, Saint Lawrence (sometimes spelled "Laurence"), one of the first seven deacons of Rome who was martyred in 258. Many other saints and Bl. Pope Pius IX are also buried at the Basilica, which is the center of a large and ancient burial complex.