<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type content="text/html; charset=iso-8859–1"> Focusing on the Latin Empire of Constantinople, this study undertakes a first-ever synchronous and diachronic transcultural comparative analysis of the interactions between models of imperial rule and large-scale governance alliances in the Eastern Mediterranean region during the 13th century. The analysis reveals the consequences of the tension-filled interactions between the Latin and Byzantine world in the Mediterranean area.