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.
Sep Ruf
Sep Ruf (full name Franz Joseph Ruf; 9 March 1908, in Munich – 29 July 1982, in Munich) was a German architect and designer, belonging to the Bauhaus group. He was one of the representatives of modern architecture in Germany after World War II. His elegant buildings received high credits in Germany and Europe and his German pavilion of the Expo 58 in Brussels, built together with Egon Eiermann, achieved worldwide recognition. He attended the Interbau 1957 in Berlin-Hansaviertel and was one of the three architects who had the top secret order to create the governmental buildings in the new capital city of the Federal Republic of Germany, Bonn. His best known building was the residence for the Federal Chancellor of the Federal Republic of Germany, built for Ludwig Erhard, the so-called Chancellor's Bungalow.