Michelangelo never proceeded beyond the preparatory drawings for the fresco he was commissioned to paint on the opposite wall. Pope Julius II called him to Rome to paint the Sistine Chapel, and the master's sketches were destroyed by eager young artists who came to study them and took away scraps. The surviving decorations in this hall were made between 1555 and 1572 by Giorgio Vasari and his helpers, among them Livio Agresti from Forlì. They mark the culmination of mannerism and make this hall the showpiece of the palace.