From the left, Count Bernard de Grunne and the Duke of Arenberg listen to Arlington National Cemetery Historian Christopher Warren in the Memorial Display Room, in between the Tomb of the Unknown Soldier and the Memorial Amphitheater in ANC, April 14, 2015. While in ANC, the Duke of Arenberg also visited the Battle of the Bulge memorial and the President John F. Kennedy Gravesite. (Arlington National Cemetery photo by Rachel Larue)