He then marched into Boeotia, where Thebes surrendered to him, and into Thessaly, where he encountered Alexios III Angelos, who had fled the Crusader attack on Constantinople.
He then marched into Boeotia. Thebes surrendered to him, and into Thessaly. He encountered Alexios III Angelos. Alexios III Angelos had fled the Crusader attack on Constantinople.