breaking his contract with Carrara. Also, when he argued with the pope about it, he was accused of favoring Carrara marble over Seravezza's. After a delay of three years, the project was abruptly cancelled. The basilica lacks a façade to this day, and the reason for this cancellation remains a mystery to historians. However, it is still adorned by many people today. The New Sacristy of the Medici Chapel of San Lorenzo is the best example of the integration of the artist's sculptural and architectural vision since Michelangelo created both the major sculptures as well as the interior plan. Ironically, the most prominent tombs are those of two rather obscure Medici who died young, a son and grandson of Lorenzo il Magnifico. Lorenzo himself is buried in an unfinished and comparatively unimpressive tomb on one of the side walls of the chapel, not given a free-standing monument, as originally intended. Instead of returning to Rome, Michelangelo remained in Florence and agreed to continue the construction of the Medici Chapel. The Medici Chapel has monuments in it dedicated to certain members of the Medici family. Michelangelo never finished it, so his pupils later completed it. Lorenzo il Magnifico was buried at the entrance wall of the Medici Chapel. Sculptures of the "Madonna and Child" and the Medici patron Saints Cosmas and Damian were set over his burial. The Madonna and Child was Michelangelo's own work. The concealed corridor with wall drawings of Michelangelo under the New Sacristy discovered in 1976. Clement VII When Pope Leo X died, Adrian VI succeeded him but died within a year. He was succeeded by Pope Clement VII, the second Medici pope. Sophisticated, handsome, and intelligent, Pope Clement VII became one of Michelangelo's most important patrons – despite Vatican coffers running low during his papacy, due to the extravagances of previous popes and a string of international misfortunes. Clement VII, also known as Giulio di Giuliano de' Medici, was the nephew of Lorenzo and the son of Giuliano de' Medici, who was assassinated in the Pazzi conspiracy in 1478. As with Leo X, Michelangelo was educated alongside Clement VII and for many years, the two communicated in great detail both via letter and in person. Despite that Clement VII was an illegitimate child, he became an archbishop via papal dispensation, in which Leo X stipulated that his parents had been secretly married. Thus, Giulio de' Medici