Through paternal descent he is a member of the Greek Royal Family and the Danish Royal Family. Achileas-Andreas’s patrilineal great-great-grandfather, Constantine I of Greece, was the son of George I of Greece, whose father was Christian IX of Denmark. As a male-line descendant of Christian IX, he holds the title of Prince of Denmark.
His mother is the daughter of American-born British billionaire Robert Warren Miller and his Ecuadorian wife, Marie Chantal Pesantes. Achileas-Andreas’s maternal grandfather descends from passengers on the Mayflower and is connected to the British North American colonial elite. His family claims to descend from Henry I of England, Louis IV of France, and William I of Scotland.
