The head of state of Slontos within the Middle Sea Empire. * At first, it was appointed by Emperors of the Land and Sea (Brailach promotes an Archduke upwards and appoints a successor in his place). * It later turned into a hereditary noble title held by the Villblane Family. * Known Archdukes: * Martien de Lukae * Surnestor * Villeblaine * Sarnorkel