Prince Laurent of Belgium (L) his wife Princess Claire of Belgium (C) and their children (from L) Princess Louise, Prince Aymeric and Prince Nicolas pose during a royal visit to the exhibition 'La maison d'Anne Frank' (Anne Frank House) in Stavelot on April 20, 2015. The exhibition is open until February 14, 2016. AFP PHOTO / BELGA / BENOIT DOPPAGNE  --BELGIUM OUT--        (Photo credit should read BENOIT DOPPAGNE/AFP/Getty Images)