Theodore emerged as the main beneficiary of Kaloyan's victory. The Latins' defeat revealed the fragility of their rule, and secured Theodore's position. Taking advantage of the moment, he expelled the Latin garrisons from most Anatolian fortresses, and transferred his capital from Prussa to Nicaea. Greeks were swarming to his realm from the European territories under Latin rule. Mangaphas ceded Philadelphia to Theodore, and Asidenos's lands were also absorbed into Theodore's realm. The local aristocrats supported Theodore against the rebellious magnates, and he awarded them with court titles. Theodore extracted an oath of fealty from Michael I of Epirus's brother, Theodore Komnenos Doukas, who had settled in Asia Minor, before allowing him to leave for Epirus.