With King Juan Carlos recuperating from hip surgery, the Spanish royal family were busy carrying out official engagements. Prince Felipe and his wife, Princess Letizia, were in Valencia on April 17, 2012 to attend the 5th Centenary of ‘Hospital Reial Y General’ Closing Ceremony. Queen Sofia of Spain and her son, Prince Felipe, carried out official engagements on April 18, 2012. Queen Sofia attended the Mapfre Foundation Awards in Madrid and was greeted by her daughter, Infanta Elena, who works for the Maprfre Foundation. On the same day, Prince Felipe visited the Repsol Refinery Extension in Cartagena. Argentina, by seizing control of YPF, a subsidiary of Repsol, has effectively nationalized the Spanish energy firm, creating a diplomatic row between the two countries. Photos by Getty Images.