According to the Partitio terrarum imperii Romaniae, the empire was apportioned between Venice and the leaders of the crusade, and the Latin Empire of Constantinople was established. Baldwin of Flanders on the was made emperor. Boniface went on to found the Kingdom of Thessalonica, a vassal state of the new Latin Empire. The Venetians also founded the Duchy of the Archipelago in the Aegean Sea. Meanwhile, Byzantine refugees founded their own rump states, the most notable of these being the Empire of Nicaea under Theodore Laskaris (a relative of Alexios III), the Empire of Trebizond, and the Despotate of Epirus.