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.
Rafael Aburto
Rafael Aburto Renovales (2 November 1913 – 9 March 2014) was a Spanish architect. His most famous works are Casa Sindical de Madrid and Obra Sindical del Hogar. Aburto helped organize the Council of Spanish Architectural Associations. Aburto was born in Neguri, Vizcaya, Spain. He studied at Madrid School of Architecture. He turned 100 in November 2013 and died of natural causes in Madrid, aged 100.