Britain's Princess Royal and Professor Stephen Hawking talk as they attend a reception and dinner in support of the Motor Neurone Disease Association at Buckingham Palace on March 10, 2015. (Photo by Ian West – WPA Pool/Getty Images)
The World of Royalty
Britain's Princess Royal and Professor Stephen Hawking talk as they attend a reception and dinner in support of the Motor Neurone Disease Association at Buckingham Palace on March 10, 2015. (Photo by Ian West – WPA Pool/Getty Images)