Colossus of Constantine head visible on the left

The Palazzo dei Conservatori ("Palace of the Conservators"), originally called the Palazzo Caffarelli, was built in the Middle Ages for the local magistrate on top of a 6th century BCE temple dedicated to Jupiter "Maximus Capitolinus". It was the first use of a giant order that spanned two storeys, here with a range of Corinthian pilasters and subsidiary Ionic columns flanking the ground-floor loggia openings and the second-floor windows. The year before Michelangelo's death, the façade of the Palazzo dei Conservatori was started according to a new set of drawings produced under his supervision, and the building was completed (1568-1584) by Giacomo della Porta. It is now part of the Capitoline Museums.