Prospero, close by, has a facade of 1504, in which are incorporated six marble lions belonging to the original Romanesque edifice.
In 1504 it was given to Prospero Colonna.
By the rough magic of this modern Prospero the universe of being is not, and yet is, thought, idea, spirit, reason, God.
His father, Prospero Balbo, who belonged to a noble Piedmontese family, held a high position in the Sardinian court, and at the time of Cesare's birth was mayor of the capital.
We learn in them how Caliban (democracy), the mindless brute, educated to his own responsibility, makes after all an adequate ruler; how Prospero (the aristocratic principle, or, if we will, the mind) accepts his dethronement for the sake of greater liberty in the intellectual world, since Caliban proves an effective policeman, and leaves his superiors a free hand in the laboratory; how Ariel (the religious principle) acquires a firmer hold on life, and no longer gives up the ghost at the faintest hint of change.