Henry, the brother of the Emperor Baldwin of Constantinople, with as many people as he could gather, marched against the Greeks to a city called Tzurulum, which is a three days' journey from Constantinople. This city surrendered, and the Greeks swore fealty to him-an oath which at that time men observed badly. From thence he marched to Arcadiopolis, and found it void, for the Greeks did not dare to await his coming. And from thence again he rode to the city of Bizye, which was very strong, and well garrisoned with Greeks; and this city too surrendered.