World Royals in Waiting: Prince Charles and the World’s Other Heir Apparents April 20, 2011 prev6 of 12next REUTERS/Eloy AlonsoSpain's Queen Sofia (L), Crown Prince Felipe (C) and his wife Princess Letizia wave upon arriving for the 2010 Prince of Asturias awards ceremony at Campoamor theatre in Oviedo, northern Spain Share Read Later These royals are still waiting for their moment in the sun.