Spain’s Princess Letizia (L) looks on as a member of the honour guard is assisted after passing out during a parade before the arrival of Britain’s Prince Charles at the Pardo Palace outside Madrid, March 30, 2011. Prince Charles and his wife Camilla, the Duchess of Cornwall, are in Spain for an official visit. REUTERS/Andrea Comas (SPAIN — Tags: MILITARY ROYALS IMAGES OF THE DAY)