Most popes throughout history are buried in Rome, with the majority resting in several key basilicas and churches:

• St. Peter’s Basilica (Vatican Grottoes and above) : About 90 popes are buried here, including 21 in the Vatican grottoes beneath the basilica. This site is significant as it is traditionally believed to be the burial place of Saint Peter, the first pope

• Archbasilica of St. John Lateran : The cathedral church of the Pope as Bishop of Rome, housing the remains of 22 popes. The last pope buried here was Leo XIII in 1903

• Basilica of Santa Maria Maggiore : Seven popes are buried here, including Pope Francis, who chose this basilica for his burial due to his special devotion. Other notable popes buried here include Saint Pius V, Sixtus V, Clement VIII, Paul V, and Clement IX

• Santa Maria sopra Minerva : Five popes, including Medici popes Leo X and Clement VII, are buried in this Gothic church

• Basilica of San Lorenzo fuori le mura (St. Lawrence Outside the Walls) : Five popes, including Blessed Pius IX, are buried here

• Basilica of St. Paul Outside the Walls : Contains the tombs of three popes, including Felix III and John XIII

• Basilica of the Twelve Holy Apostles : The burial place of Pope Clement XIV

In addition to these, some popes are buried outside Rome, often due to historical circumstances such as the Avignon Papacy or abdications:

• Popes Benedict XII and John XXII are buried in Avignon.
• Pope Gregory XII is buried in the Cathedral of Recanati.
• Saint Celestine V is buried in the Basilica of Collemaggio in L’Aquila.
• Blessed Gregory X in Arezzo.
• Saint Gregory VII in Salerno.
• Saint Adeodatus I in Cinto Euganeo, Veneto

In summary, while the majority of popes are buried in Rome, especially in St. Peter’s Basilica and other major basilicas, a significant number are interred in various churches around Rome or in other locations in Italy and Europe depending on their historical context and personal wishes