What is the building that was built by Pope Sixtus IV and where the Papal conclave occurs?
Della Rovere The Della Rovere family (] ; literally "of the Oak Tree") is a noble family of Italy. Coming from modest beginnings in Savona, Liguria, the family rose to prominence through nepotism and ambitious marriages arranged by two della Rovere popes, Francesco della Rovere, who ruled as Pope Sixtus IV (1471–1484) and his nephew Giuliano (Pope Julius II, 1503–1513). Pope Sixtus IV built the Sistine Chapel, which is named for him. The Basilica San Pietro in Vincoli in Rome is the family church of the della Rovere.
Clementine Hall The Clementine Hall, called the "Sala Clementina" (The Clementine Salon) is a hall of the Apostolic Palace near St. Peter's Basilica in Vatican City. It was established in the 16th century by Pope Clement VIII in honor of Pope Clement I, the third successor of St. Peter. The Clementine Hall is covered in Renaissance frescoes and valuable works of art. It is used by the pope as a reception room and in some cases, site of various ceremonies and rituals. The Clementine Hall is the chamber in which the body of the pope lies for private visitation by officials of the Vatican upon death, like that most recently of the funeral of Pope John Paul II. The pope's body is then traditionally moved from the Clementine Hall and ceremonially carried across St. Peter's Square to St. Peter's Basilica or the Basilica of San Giovanni in Laterano.