The Order of the Immaculate Conception of Vila Viçosa is a dynastic order of knighthood of the House of Braganza, the former Portuguese Royal Family. The current Grand Master of the Order is Duarte Pio, Duke of Braganza, the Head of the House of Braganza.

Dom Duarte Pio, Duke of Braganza is the current Duke of Braganza and a claimant to the dormant Portuguese throne, as the head of the House of Braganza. The Miguelist Braganzas, to whom Duarte Pio belongs as great-grandson of King Miguel I, is a cadet branch of the House of Braganza. With the extinction of male-line dynasts descended from Queen Maria II in 1932, King Miguel's descendants became the only male-line Braganzas remaining and the closest male-line heirs to the defunct Portuguese throne.