The Capitol was surrounded with uneven battlemented walls, and bore the character and look of an irregular citadel. St. Peter’s was a low basilica; the Colosseum had suffered little from the attacks of Popes or princes, neither the Venetian nor the Farnese palace having as yet been built with stones from its walls; and centuries were still to pass before Michel Angelo, Bernini, and Borromini were to stamp its present character upon the face of the modern city. The siege and burning of Rome by Robert Guiscard, in 1084, may be taken as the dividing-line between the city of the Emperors and the city of the Popes, between ancient and modern Rome.⁠ ⁠… Rome was in a state of too deep depression, its people were too turbulent and unsettled, to have either the spirit or the opportunity for great works. There was no established and recognized authority, no regular course of justice. There was not even any strong force, rarely any overwhelming violence, which for a time at least could subdue opposition, and organize a steady, and consequently a beneficent tyranny. The city was continually distracted by petty personal quarrels, and by bitter family feuds.