Italian painter, brother and pupil of the book illuminator Cristoforo de Predis. He belonged to Leonardo's circle of pupils. Numerous portraits have been attributed to him, in particular the family members of Lodovico Sforza, and also the well-known portrait of Emperor Maximilian in Vienna. He completed commissioned copies of some of Leonardo's paintings, but he also deserves attention as an independent artist, even although always dependent on Leonardo. //