His Royal Highness Prince Constantin Jean Philippe Marie Albert Marc d'Aviano of Nassau (Prince Constantin de Nassau) was born at Paris, France, on 22 July 1988. Until 27 November 2004 his title was Count of Nassau.
Constantin is the second child and eldest son of Prince Jean of Luxembourg (born 1957) and his wife (1987-2004) Hélène Vestur (born 1958).
Constantin has two brothers, Wenceslas (born 1990) and Carl-Johann (born 1992), and one sister, Marie-Gabrielle (born 1986).
Photo & Copyright: Henriëtte E.