The legend has it that in the early 1500s Raffaello was working on the decorations inside Villa Farnesina. One day, Michelangelo entered the rooms to see the frescoes of his rival: the reason is uncertain but he painted a beautiful portrait known as "testa monocroma" ("monochrome head") on a lunette. Somebody claims that the painting is by Baldassarre Peruzzi. We don't know the truth but we what we know for sure is that Raffaello didn't erase it, maybe impressed by the skills of the mysterious maestro.