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.
Italian art
Raphael's paintings are softer in outline and more poetic than those of Michelangelo. Raphael was skilled in creating perspective and in the delicate use of color. He painted a number of beautiful pictures of the Madonna (Virgin Mary) and many outstanding portraits. One of his greatest works is the fresco "The School of Athens". The painting was influenced by classical Greek and Roman models. It portrays the great philosophers and scientists of ancient Greece in a setting of classical arches. Raphael was thus making a connection between the culture of classical antiquity and the Italian culture of his time.