The House of Stuart-Villayn is the reigning imperial dynasty in Empire Republicàin d'Alduria, and has reigned during a combined length of over 70 years (and over 90 years if the presidencies of Danan Villayn and John Stuart which brought down the Etát d'Alduria are accounted for). That is the longest reign of the same political faction in Aldurian history. During the leadership of the Stuart-Villayns, Alduria has been turned from a peripheral and insignificant republic into a full-fledged great power which exerts tremendous soft and hard influence over Terra.