Kingdom of Thessalonica
Guy also owned the whole of Thebes, for which along with Argos he owed homage to the prince of Achaea. Athens itself was independent of any other sovereign than the Latin emperor after the fall of the Kingdom of Thessalonica in 1224. The duchy was prospering at the time, however, due to its silk industry (centred at Thebes) and its trade with Venice and Genoa. In 1240, Guy gave out half of the lordship of Thebes to Bela of St. Omer, the husband of his sister Bonne.