In the Luxembourg catalogue which I recently mentioned on this Board http://members2.boardhost.com/royal-jewels/msg/1373865129.html there's this gorgeous painting of the late Grand Duchess Charlotte, (created in 1937 by Denis Etcheverry) and which was shown at the exhibition at the Musée national d'Histoire et d'art in Luxembourg with permission from the Chambre des Députés where it usually has its place.
The jewels HRH is wearing are gorgeous and she cuts such an elegant figure here too! Gorgeous painting!!