The Duchess of Cambridge lays flowers at a grave in Tyne Cot Commonwealth War Graves Cemetery in Ypres, Belgium, at a commemoration ceremony to mark the centenary of Passchendaele. (Photo by Yui Mok/PA Images via Getty Images)
The Duchess of Cambridge lays flowers at a grave in Tyne Cot Commonwealth War Graves Cemetery in Ypres, Belgium, at a commemoration ceremony to mark the centenary of Passchendaele. (Photo by Yui Mok/PA Images via Getty Images)