epa01673540 Philippe, Duke of Brabant, Prince of Belgium (2L) and Princess Mathilde (L), pose near the Aztec Calendar Stone during their visit to the National Museum of Anthropology and History in Mexico City, Mexico, 22 March 2009. Prince Philippe, heir to the Belgian throne, heads a delegation of more than 75 businessmen who are visiting Mexico to promote commercial agreements in ports infrastructure, energy, health and aeronautics. EPA/JOSE MENDEZ