BELGIUM-BRITAIN-ROYALS-HISTORY-WATERLOO-ANNIVERSARY

Britain's Prince Charles, Prince of Wales (C), his wife Camilla (L), Duchess of Cornwall and Belgium's Princess Astrid attend the inauguration of the 'Ferme d'Hougoumont' (The Hougoumont farm) memorial site, a part of the commemorations of the bicentenary of the Battle of Waterloo, on June 17, 2015 in Waterloo. Britain's Prince Charles and his wife Camilla on June 17 unveiled a memorial to the allied soldiers who defeated French emperor Napoleon's forces at the Battle of Waterloo two hundred years ago. The royal couple visited the renovated Hougoumont farmhouse where allied forces fought off a bloody French advance on June 18, 1805, in one of the most decisive moments in the battle. AFP PHOTO / BELGA / THIERRY ROGE ***BELGIUM OUT*** (Photo credit should read THIERRY ROGE/AFP via Getty Images)