Battista Franco of Venice, having given his attention in his early childhood to design, went off at the age of twenty, as one who aimed at perfection in that art, to Rome, where, after he had devoted himself for some time with much study to design, and had seen the manner of various masters, he resolved that he would not study or seek to imitate any other works but the drawings, paintings, and sculptures of Michelagnolo; wherefore, having set himself to make research, there remained no sketch, study, or even any thing copied by Michelagnolo that he had not drawn. Wherefore no long time passed before he became one of the first draughtsmen who frequented the Chapel of Michelagnolo; and, what was more, he would not for a time set himself to paint or to do any other thing but draw. But in the year 1536, festive preparations of a grand and sumptuous kind being arranged by Antonio da San Gallo for the coming of the Emperor Charles V, in which, as has been related in another place, all the craftsmen, good and bad, were employed, Raffaello da Montelupo, who had to execute the decorations of the Ponte S. Angelo with the ten statues that were placed upon it, having seen that Battista was a young man of good parts and a finished draughtsman, resolved to bring it about that he also should be employed, and by hook or by crook to have some work given to him to do. And so, having spoken of this to San Gallo, he so contrived that Battista was commissioned to execute in fresco four large scenes in chiaroscuro on the front of the Porta Capena, now called the Porta di S. Bastiano, through which the Emperor was to enter.