(From L-R) Norway's Princess Astrid, Mrs Ferner, Crown Prince Haakon, Grand Duchess Maria Teresa of Luxembourg, Norway's King Harald, Queen Sonja, Grand Duke Henri of Luxembourg and Norway's Crown Princess Mette-Marit pose for a photoshoot at the Oslo City Hall May 31, 2011 on the occasion of a reception given by the Grand Duke and Duchess of Luxembourg who are on a state visit to Norway.