Theodoros, domestikos of the scholai and Aaron, brother of Alousianos were put in command against Isaakios (I): they crossed to Chrysopolis and Nikomedeia, sent troops to capture the Sangarios bridge, camped on Mount Sophon and prepared for war. According to Skylitzes, Isaakios' men in many skirmishes tried to convince the army of Michael VI to defect, but failed. He ordered them to limit their forays and remain in camp - a decision interpreted as weakness. Psellos reported more mass desertions from Michael to Isaakios. The armies faced each other at no great distance, but there was no action. Michael VI's men were more numerous, but Isaakios had superior force and order, especially his men's cohesion and firm loyalty to him. When the army of Michael VI moved their camp closer, Isaakios drew up his army in battle order, placing Katakalon Kekaumenos at the head of the left wing, Romanos Skleros on the right, Isaakios himself leading the centre. In the other army Aaron led the left wing, having under his command Lykanthes, Pnyemios the Iberian and Radulf the Frank. Basileios Tarchaneiotes, stratelates of the West, led the right wing. Theodoros, the domestikos of the scholai, was in overall command. The battle took place at a spot locally called Hades