In the mean time, Joannice continued his pursuit of the conquered army. The Greeks, united with the Bulgarians, took possession of all the provinces, and left the Latins no repose. Among the disasters of which contemporary history has left us a deplorable account, we must not forget the massacre of twenty thousand Armenians. This numerous colony had left the banks of the Euphrates, and established themselves in the province of Natolia. After the conquest of Constantinople, they declared for the Latins, and when the latter experienced their reverses, finding themselves menaced and pursued by the Greeks, they crossed the Bosphorus, and followed Henry of Hainault, who was marching towards Adrianople. The Armenians took with them their flocks and their families: they drew, in carriages, all that they possessed that was most valuable, and had great difficulty, on their march across the mountains of Thrace, in keeping up with the army of the Crusaders. These unfortunate people were surprised by the Tartars, and, to a man, perished beneath the swords of a pitiless conqueror. The Franks wept at the defeat and destruction of the Armenians, without being able to avenge them: they had nothing but enemies throughout the vast provinces of the empire. Beyond the Bosphorus, they only preserved the castle of Peges: on the European side, only Rodosto and Selembria. Their conquests in ancient Greece were not yet threatened by the Bulgarians; but these distant possessions only served to divide their forces. Henry of Hainault, who took the title of regent, performed prodigies of valour in endeavouring to retake some of the cities of Thrace; and lost, in various combats, a great number of the warriors that remained under his banners.