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.
Alexander Raphael
His legacy is St Raphael's Church in Surbiton, London, which he financed and had built as a family chapel. Completed in 1848, only two years before his death, it was later opened to the public as a Roman Catholic church by his nephew, Edward.