As soon as Dandolo, Count Louis, and the other nobles who had remained in Constantinople heard what Marquis Boniface was doing, they at once took counsel in ‘parlement’ as to the measures to be adopted: ‘for,’ says Villehardouin, ‘they thought that they would lose all the conquests they had made.’ They decided to send a knight to Boniface without delay, and the historian was himself chosen for the mission. He went at once to Adrianople and succeeded in persuading the marquis to submit the questions between him and the emperor to the arbitration of Dandolo and Count Louis, and for the present to cease hostilities. Meantime the emperor had occupied Salonica. As soon as he heard of the siege of Adrianople he at once hastened to its relief and ‘pour faire tout le mal qu’il pourrait au marquis.’ On the way he met the messengers from the city, who besought him to submit his case, as Boniface had consented to do, to arbitration, at the same time plainly telling him that Dandolo, Count Louis of Blois, and the other barons would not tolerate war between him and Boniface. The emperor hesitated and consulted his council. Some of the members urged that the message was an outrage and advised resistance. Violent language (‘grosses paroles’) was used, but the emperor, who was unwilling to risk the hostility of so strong a combination as Dandolo and Louis, gave way to the extent of stating that he would undertake not to attack Boniface until he went to Constantinople, although he would not pledge himself to refer the questions between them to arbitration. Shortly after, when a peace was patched up between them, it was under conditions which show that neither party trusted the other. Villehardouin undertook to hold Didymotica until he knew by a trusted messenger that Salonica had been handed over to Boniface.
Nor were the external differences which at once presented themselves less serious. The history of Constantinople and the Latin empire during the period between 1204 and 1260 is indeed that of a series of struggles between Baldwin and his successors on the imperial throne, on the one side, and the leaders of the Greek race who had refused to recognise the authority of the invaders, on the other.
Opposition of Greek population.
The Western barons seemed to have thought that with the conquest of the capital the whole empire would fall to their lot. They were soon undeceived. In Macedonia and in Epirus Greek leaders appeared, who rallied to them all who were indisposed to accept new rulers. At Trebizond on the Black Sea, and at Nicaea, the once famous city of the Creed, the Greeks flocked from the capital and its neighbourhood, and soon there were rulers of these cities who assumed the title of emperor.
Empire of Nicaea. Theodore Lascaris, 1204–1222.
The most important of those who refused to accept the Latin rule was Theodore Lascaris. He had been the last of the Greek nobles to leave the city when the invaders captured it. He made his way to Nicaea, and was followed by many Greeks. Able, courageous, and patriotic, he was soon recognised by the notables as the fittest man to have rule among them, and, though without hereditary claim to the imperial throne, he aspired to be emperor and was accepted as best suited to receive that dignity. Two years after the capture of Constantinople, a new patriarch was elected, who consented to live at Nicaea and who amid as much ceremony as if the coronation had taken place in St. Sophia placed the crown on the head of Theodore in the church of the same name at Nicaea. The prudence and judgment of the new emperor did much to rally the best of his countrymen around him, and justified the choice made in electing him to the imperial throne. The Greek priests flocked to the city from all parts of Western Asia Minor as well as from Thrace.
Nevertheless, his task was beset with difficulties. He had enemies on all sides, pretenders of his own race, the Latin emperor and the sultan of the Seljukian Turks. The latter, whose capital was at Konia, had no idea of allowing any neighbour to become formidable. A Greek pretender held the country to the west of Nicaea. The Latin emperor and barons chose to regard Theodore as a rebel because he would not make submission. After unsuccessful attempts against him by Baldwin and his successor, Theodore was allowed in 1207 to remain in possession of Ismidt (the ancient Nicomedia) and Cyzicus for a period of two years. He employed the period in strengthening and extending his empire. At the end of it, Henry the brother of Baldwin, whom he succeeded as emperor, made an alliance with the sultan of the Seljukian Turks: that is to say, the Crusaders who had justified themselves to Innocent the Third for attacking a Christian city on the ground that the Greek emperors had allowed the Moslems to have a mosque within the city, now found themselves under the necessity of joining forces with the infidel to attack a Christian prince.
Upon the declaration of war by the sultan, Theodore pushed forward into the valley of the Meander, and a battle was fought which, if the Byzantine authorities are to be trusted, was decided in single combat between the two sovereigns. The sultan was killed, and the empire of Nicaea was saved. The Emperor Henry, however, when he heard of the extent of the loss in Theodore’s army exclaimed, ‘The Greek is not conqueror: he is ruined.’
So far from being ruined, his success caused many Greeks to flock into his empire from Constantinople. When, in 1214, the Emperor Henry again declared war, Theodore was ready for him; and as the Greeks in Epirus had commenced a vigorous attack on the crusading barons in Macedonia, Henry was glad to make a peace which left Theodore undisputed master of a territory bounded on the west by a line from Heraclea on the Black Sea to Ismidt, thence to Cyzicus and to the coast just north of Pergamos. The fruitful valleys of the Meander, the Cayster, and the Hermus marked his boundaries on the south-west.