Gianfrancesco Penni
Born in Florence to a family of weavers, Penni entered Raphael's workshop very early in his life, and collaborated with him on several works, including the famous Rooms of the Vatican Palace, as well as the frescoes of Villa Farnesina, both in Rome. Heinrich Wölfflin and some other writers credited him with the entire execution of the Raphael Cartoons, with Raphael only creating the initial design, though more recent writers believe Raphael did much of the work himself.
List of paintings by Raphael
The following is a list of paintings by Italian Renaissance painter Raphael. Together with Michelangelo and Leonardo da Vinci he forms the traditional trinity of great masters of that period. He was enormously productive, despite his early death at 37, and a large body of work remains, especially in the Vatican, where Raphael and the large team under his direction, executing his drawings frescoed the Raphael Rooms known as the Stanze. He was extremely influential in his lifetime, but after his death the influence of his great rival Michelangelo was more widespread until the 18th and 19th centuries, when his more tranquil qualities were again widely taken as models.