Crown Princess Beatrix of the Netherlands (left) and her sister Princess Irene eating their lunch at primary school 'De Werkplaats', March 1946. (Photo by Keystone/Hulton Archive/Getty Images)
Crown Princess Beatrix of the Netherlands (left) and her sister Princess Irene eating their lunch at primary school 'De Werkplaats', March 1946. (Photo by Keystone/Hulton Archive/Getty Images)