Spanish King Felipe VI (2L) and Queen Letizia (R) are greeted by Britain's Prince Charles, Prince of Wales (2R) and Camilla, Duchess of Cornwall (L) at their hotel before a ceremonial welcome at Horse Guards Parade by Britain's Queen Elizabeth II (L) and Prince Philip, Duke of Edinburgh at the start of the Spanish King and Queen's three-day state visit, in central London on July 12, 2017. Spanish King Felipe VI and Queen Letizia begin a state visit to Britain on Wednesday, as the two countries attempt to strengthen ties despite tensions over Britain's plans to leave the European Union. / AFP PHOTO / POOL / HANNAH MCKAY (Photo credit should read HANNAH MCKAY/AFP/Getty Images)
