The Imperial dignity of Charlemagne was announced to the East by the alteration of his style; and instead of saluting his fathers, the Greek emperors, he presumed to adopt the more equal and familiar appellation of brother. Perhaps in his connection with Irene he aspired to the name of husband: his embassy to Constantinople spoke the language of peace and friendship, and might conceal a treaty of marriage with that ambitious princess, who had renounced the most sacred duties of a mother. The nature, the duration, the probable consequences of such a union between two distant and dissonant empires, it is impossible to conjecture; but the unanimous silence of the Latins may teach us to suspect, that the report was invented by the enemies of Irene, to charge her with the guilt of betraying the church and state to the strangers of the West. The French ambassadors were the spectators, and had nearly been the victims, of the conspiracy of Nicephorus, and the national hatred. Constantinople was exasperated by the treason and sacrilege of ancient Rome: a proverb, "That the Franks were good friends and bad neighbors," was in every one's mouth; but it was dangerous to provoke a neighbor who might be tempted to reiterate, in the church of St. Sophia, the ceremony of his Imperial coronation. After a tedious journey of circuit and delay, the ambassadors of Nicephorus found him in his camp, on the banks of the River Sala; and Charlemagne affected to confound their vanity by displaying, in a Franconian village, the pomp, or at least the pride, of the Byzantine palace. The Greeks were successively led through four halls of audience: in the first they were ready to fall prostrate before a splendid personage in a chair of state, till he informed them that he was only a servant, the constable, or master of the horse, of the emperor. The same mistake, and the same answer, were repeated in the apartments of the count palatine, the steward, and the chamberlain; and their impatience was gradually heightened, till the doors of the presence-chamber were thrown open, and they beheld the genuine monarch, on his throne, enriched with the foreign luxury which he despised, and encircled with the love and reverence of his victorious chiefs. A treaty of peace and alliance was concluded between the two empires, and the limits of the East and West were defined by the right of present possession. But the Greeks soon forgot this humiliating equality, or remembered it only to hate the Barbarians by whom it was extorted. During the short union of virtue and power, they respectfully saluted the _august_ Charlemagne, with the acclamations of _basileus_, and emperor of the Romans. As soon as these qualities were separated in the person of his pious son, the Byzantine letters were inscribed, "To the king, or, as he styles himself, the emperor of the Franks and Lombards." When both power and virtue were extinct, they despoiled Lewis