of St. Peter were alienated in their favor by the liberal Celestin;²⁸ and Nicholas was ambitious for their sake to solicit the alliance of monarchs; to found new kingdoms in Lombardy and Tuscany; and to invest them with the perpetual office of senators of Rome. All that has been observed of the greatness of the Colonna will likewise redeemed to the glory of the Ursini, their constant and equal antagonists in the long hereditary feud, which distracted above two hundred and fifty years the ecclesiastical state. The jealously of preeminence and power was the true ground of their quarrel; but as a specious badge of distinction, the Colonna embraced the name of Ghibelines and the party of the empire; the Ursini espoused the title of Guelphs and the cause of the church. The eagle and the keys were displayed in their adverse banners; and the two factions of Italy most furiously raged when the origin and nature of the dispute were long since forgotten.²⁹ After the retreat of the popes to Avignon they disputed in arms the vacant republic; and the mischiefs of discord were perpetuated by the wretched compromise of electing each year two rival senators. By their private hostilities the city and country were desolated, and the fluctuating balance inclined with their alternate success. But none of either family had fallen by the sword, till the most renowned champion of the Ursini was surprised and slain by the younger Stephen Colonna.³⁰ His triumph is stained with the reproach of violating the truce; their defeat was basely avenged by the assassination, before the church door, of an innocent boy and his two servants. Yet the victorious Colonna, with an annual colleague, was declared senator of Rome during the term of five years. And the muse of Petrarch inspired a wish, a hope, a prediction, that the generous youth, the son of his venerable hero, would restore Rome and Italy to their pristine glory; that his justice would extirpate the wolves and lions, the serpents and bears, who labored to subvert the eternal basis of the marble column.³¹