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. Theodore died in 1222. The first duty of the Greeks when driven out of Constantinople was to make themselves secure against the conquerors and to prevent the progress of the crusading armies into Asia Minor. This duty had been effectually done by Theodore. During the eighteen years of his reign he had made his capital and its beautiful neighbourhood the rallying-place of what was best in the Greek-speaking populations of Asia Minor and of Thrace. He had checked the progress of the crusaders into Asia Minor and had left to his successors the task of working for the recovery of Constantinople. [Sidenote: Henry succeeds Baldwin, 1205–1216.] Meantime, the history of the Latin conquerors of Constantinople had been one of almost continuous disaster. The first Emperor Baldwin had been lost in an encounter with the Bulgarians near Adrianople in April 1205, and was probably killed. As his fate remained doubtful, his brother Henry acted as regent for a year and was then crowned emperor. Shortly after the commencement of his reign in 1207, Boniface, Marquis of Montferrat and King of Salonica, was killed in a skirmish. Henry seems to have realised that in a policy of conciliation towards the Greeks lay the only hope of the continuance of his empire. He made peace with the Bulgarians and concluded an arrangement with both the emperor of Nicaea and the Greek prince who had made himself recognised as despot in Epirus. He employed Greeks in the public service. He refused to take part in the persecution of the Greeks who would not obey the decrees of the pope’s legate. He allowed them to employ the Greek language in their services, and restrained the pretensions of the Roman priests. Unfortunately for the Latin empire, the reign of the chivalrous Henry lasted only ten years. [Sidenote: Peter succeeds, 1217–1219.]