Social networks, studied for several decades now, enable us to approach the Latin elites of the Principality of Morea from a different perspective - as well as, more broadly, those from the Eastern Mediterranean in the Middle Ages. More or less extensive, networks aim at efficiency by strengthening an alliance, strengthening a political position, or consolidating military assistance. Never disinterested, they allow elites to establish themselves within their respective societies - or even to maintain their position.