When the translation of the holy see to Avignon left Rome to herself, the tocsin of the Capitol obliged the barons to leave their fortified retreats to come and humiliate themselves before the popular tribune, and history shows us the Savelli, Frangipani, Colonna, and Orsini, standing with bare heads, in a submissive attitude, subscribing tremblingly to an oath of fidelity to the “law of good estate” in the hands of an innkeeper. Their palaces were no longer their refuges, their excess had no more the privilege of impunity. An attempt to revolt forced them to hear their condemnation as though they were the lowest criminals and to receive the pardon more humiliating still. In the greater part of the republics where war demanded a leader, but where abuse of power had made all the native nobles hateful, the rival factions called on a foreign magistrate to govern Rome, demanded a head from Bologna and Venice furnished one to Padua, Pisa, and Milan. [Illustration: SAN MARCO, VENICE] In those states where an unfertile soil tempted but a small part of the population to agriculture, and offered no great means of power to territorial lords, these latter saw their influence decrease in proportion as other fortunes rose by means of commerce. They had, however, to maintain themselves, the resources of the military service and, above all, the faction. This was the condition of the nobles of Genoa, Pisa, and Florence. When they tried violently to reseize the power, they were suppressed and punished. Their fortresses were razed, and hatred against them was carried to an injustice by depriving them of rights which were common to all. [Illustration: A DOGE OF VENICE] It was in these commercial towns that the citizens, rapidly enriched by fortunate enterprise, began to compare themselves with those ancient possessors of privileges and to claim a share. A nobility sprang up of quite different origin from the first, which disputed its authority, but was disposed, like the other, to retain and abuse it. It is seen that the influence of the privileged classes was modified according to circumstances. Lords established in Italy by right of conquest ceased at the time of the invasion of the Goths and other foreigners to be rulers, and were no more than powerful vassals when regular monarchies arose.