The British Princess Royal, Princess Anne speaks during the opening of an exhibition celebrating the 800th anniversary of the Magna Carta at the Library of Congress in Washington, DC, November 6, 2014. The exhibition, which will last 10 weeks, features the Lincoln Cathedral Magna Carta, one of only four surviving copies of the original issue in 1215. AFP PHOTO / Saul LOEB        (Photo credit should read SAUL LOEB/AFP via Getty Images)