emperor and the pope: Ravenna was subdued by force or treachery, 50 and this final conquest extinguished the series of the exarchs, who had reigned with a subordinate power since the time of Justinian and the ruin of the Gothic kingdom. Rome was summoned to acknowledge the victorious Lombard as her lawful sovereign; the annual tribute of a piece of gold was fixed as the ransom of each citizen, and the sword of destruction was unsheathed to exact the penalty of her disobedience. The Romans hesitated; they entreated; they complained; and the threatening Barbarians were checked by arms and negotiations, till the popes had engaged the friendship of an ally and avenger beyond the Alps. 51 47 (return) [ See West’s Dissertation on the Olympic Games, (Pindar. vol. ii. p. 32-36, edition in 12mo.,) and the judicious reflections of Polybius (tom. i. l. iv. p. 466, edit Gronov.)] 48 (return) [ The speech of Gregory to the Lombard is finely composed by Sigonius, (de Regno Italiae, l. iii. Opera, tom. ii. p. 173,) who imitates the license and the spirit of Sallust or Livy.] 49 (return) [ The Venetian historians, John Sagorninus, (Chron. Venet. p. 13,) and the doge Andrew Dandolo, (Scriptores Rer. Ital. tom. xii. p. 135,) have preserved this epistle of Gregory. The loss and recovery of Ravenna are mentioned by Paulus Diaconus, (de Gest. Langobard, l. vi. c. 42, 54, in Script. Ital. tom. i. pars i. p. 506, 508;) but our chronologists, Pagi, Muratori, &c., cannot ascertain the date or circumstances] 50 (return) [ The option will depend on the various readings of the Mss. of Anastasius—deceperat, or decerpserat, (Script. Ital. tom. iii. pars i. p. 167.)] 51 (return) [ The Codex Carolinus is a collection of the epistles of the popes to Charles Martel, (whom they style Subregulus,) Pepin, and Charlemagne, as far as the year 791, when it was formed by the last of these princes. His original and authentic Ms. (Bibliothecae Cubicularis) is now in the Imperial library of Vienna, and has been published by Lambecius and Muratori, (Script. Rerum Ital. tom. iii. pars ii. p. 75, &c.)]