Gian Giacomo Medici was the brother of Giovanni Angelo Medici, who was later to be elected Pope as Pius IV. They were scions of an impoverished though patrician family of Milan not connected with the Medici of Florence, in spite of the Medici heraldic palle appearing in the contemporary engraving (illustration): thus the nickname Il Medeghino, the "little Medici". It is likely that Gian Giacomo even had a residence in Cima, on the same spot where now stands a hotel, probably not called by chance Parco San Marco.