The Duke of Viseu is fourth in the Line of succession to the former Portuguese throne, behind his elder brother, Duarte Pio, Duke of Braganza, and his three children.
The Duke of Viseu is a noted patron of the arts and painter, and the founder and sponsor of the annual Luso-Brazilian Week of Aldravist Art, held interchangeably between Portugal and Brazil.
He is also an active member in various orders of chivalry, notably the Sovereign Military Order of Malta and the Sacred Military Constantinian Order of Saint George.