Dauid Filly per nome et parte delli magnifici Edwardo Osborn senatore et

We are justified in believing that the disposition of the parts which now compose the Capitol is due to his conception: the long steep flight of steps leading up from the Piazza Araceli; the irregular open square, flanked on the left hand by the Museum of Sculpture, on the right by the Palazzo dei Conservatori, and closed at its farther end by the Palazzo del Senatore.

The splendid double staircase leading to the entrance hall of the Palazzo del Senatore, and part of the Palazzo dei Conservatori, were completed during Michelangelo's lifetime.