Britain's Prince William, Duke of Cambridge(R)and Catherine, Duchess of Cambridge (L) pose during their visit to The Taj Mahal in Agra on April 16, 2016. 
Prince William and his wife Kate arrived at the Taj Mahal, wrapping up their week-long trip to India and Bhutan with a visit that carries poignant echoes for Britain's royal family. / AFP / POOL / MONEY SHARMA        (Photo credit should read MONEY SHARMA/AFP/Getty Images)