Raphael
Raphael was enormously productive, running an unusually large workshop and, despite his death at 37, leaving a large body of work. Many of his works are found in the Vatican Palace, where the frescoed Raphael Rooms were the central, and the largest, work of his career. The best known work is "The School of Athens" in the Vatican Stanza della Segnatura. After his early years in Rome much of his work was executed by his workshop from his drawings, with considerable loss of quality. He was extremely influential in his lifetime, though outside Rome his work was mostly known from his collaborative printmaking.
The Prophet Isaiah (Raphael)
Much comparison is made of the Raphael fresco "Prophet Isaiah" to the work of Michelangelo, Ernst Gombrich going as far to suggest that Michelangelo may have hired Raphael to work on Ezekiel for the Sistine Chapel, which he believes is much more reflective of Raphael than of Michelangelo. This would have allowed Raphael to both gain influence by Michelangelo and also contribute to the decoration of the Sistine Chapel.