Another very interesting and important result of the Lombard invasion was that the prolonged duel between Barbarians and Greeks prevented the development of any common form of government. There might in time emerge an Italian race, but there could be no Italian nation so long as towns and provinces were dominated by rulers whose policy and ambitions were utterly opposed. The _Exarch_ of Ravenna claimed, in the name of the Emperor at Constantinople, to collect taxes from and administer the whole peninsula, but in practice he often ruled merely the strip of land round his city cut off from other Greek officials by Lombard dukes. He would be able to communicate by sea with the important towns on or near the coast, such as Naples, but so irregularly that their governments would tend to grow every year more independent of his control. In Rome, for instance, there was not only the Senate with its traditions of government, but the Pope, who even more than the Senate had become the protector and adviser of his fellow citizens. [Sidenote: Pope Gregory ‘the Great’] We have seen how Leo ‘the Great’ persuaded Attila the Hun to withdraw when his armies threatened the very gates of Rome, while later he went on a like though unavailing mission to Genseric the Vandal. It was acts like these that won recognition for the Papacy amongst other rulers; and more than any of the Popes before him, Gregory ‘the Great’, who ascended the chair of Peter in A.D. 590, built up the foundations of this authority. A Roman of position and wealth, Gregory had become in middle age a poor monk, giving all his money to the poor and disciplining himself by fasting and penance. He is remembered best in England to-day for the interest he showed in the fair-haired Angles in the Roman slave-market. ‘They have Angels’ faces, they should be fellow-heirs of the Angels in Heaven.’ His comment he followed up by a petition that he might sail as a missionary to the northern island from which these slaves came; and, when instead he was sent on an embassy to Constantinople, he did not forget England in the years that passed, but after he became Pope, chose St. Augustine to go and convert the heathen King of Kent. In this way southern England was christianized and brought into touch with the life of Western Europe. ‘A great Pope,’ it has been said, ‘is always a missionary Pope.’ Gregory had the true missionary’s enthusiasm, and his writings, all of them theological, bear the stamp of St. Augustine of Hippo’s ardent spirit enforced with a faith absolutely assured and unbending. Besides being instrumental in converting England, Gregory during his pontificate saw the Arian Church in Spain reconciled to the Catholic, while he succeeded in winning the Lombard king to Christianity and friendship.