The history of the pontificate of Gregory has been written and will shortly be published by my learned friend Professor H. Grisar. No better or greater subject could be found than this period when the city, abandoned by the Byzantine emperors, harassed, besieged, starved by the Lombards, found in her bishops her only chance of salvation. They never appear to greater advantage than in those eventful times, when Rome was sinking so low within, when her surroundings were changed into a lifeless desert. The queen who had ruled the world was trampled under the feet of her former slaves, and found assistance and sympathy nowhere. When Alboin overran the peninsula in 568, at the head of his Lombards, with whom warriors of several other races, especially Saxons, were intermixed, the emperor Justin could offer no other help to the Romans than the advice of bribing the Lombard chiefs, or of calling in the Franks. Barbarians for barbarians! [Illustration: Statue of S. Gregory the Great.] "On the death of Pope John III. in 573, Rome was so closely pressed that it was impossible to send to Constantinople for the confirmation of Benedict I., who had been elected his successor, and the papal throne remained vacant for one year. The same appears to have been the case on the death of Benedict, in 578, when Rome was held in siege by Zoto, duke of Beneventum, for the Lombard power had been distributed among thirty-six duchies. The particulars of this siege are unknown, but it probably lasted two or three years. On withdrawing from Rome Zoto took and plundered the Benedictine convent on Montecassino. The monks retired to Rome and established themselves in a convent near the Lateran, which they named after S. John Baptist, whence the basilica of Constantine or the Saviour subsequently took its name.... The misery of the Romans was aggravated by some natural calamities. Towards the end of 589, several temples and other monuments were destroyed by the flooding of the Tiber, and the city was afterwards afflicted by a devastating pestilence. "To the year 590, which is that of the election of Gregory, is referred the legend of the angel that was seen to hover over the Mausoleum of Hadrian, while Gregory was passing it in solemn procession, and to sheathe his flaming sword as a sign that the pestilence was about to cease. At the same time three angels were heard to sing the antiphony _Regina Cœli_, to which Gregory replied with the hymn _Ora pro nobis Deum alleluja!_"[110]