Britain's Prince Charles (2nd R), wearing a traditional Saudi uniform, dances with a sword with Saudi's second deputy Prime Minister Mugren bin Abdulaziz (L) and Prince Waleed bin Talal (C) during the traditional Saudi dance, known as 'arda', which was performed during the Janadriya culture festival at Der'iya in Riyadh, February 18, 2014. [Photo/Agencies]