Britain's Prince Harry (L) reacts as Mildmay Hospital Director of Fundraising, Kerry Reeves-Kneip, presents him with a Christmas card and framed photographs of his late mother, Britain's Dianna, Princess of Wales during one of her visits to the hospital, during his visit to Mildmay HIV hospital and charity in London on December 14, 2015, where he officially opened their new facilities. Mildmay has been at the forefront of specialist HIV care since it became the first dedicated hospice for people dying of AIDS related illnesses in 1988. Prince Harry's mother was a frequent visitor to the hospital, both officially and privately.  AFP PHOTO / YUI MOK / POOL / AFP / POOL / YUI MOK        (Photo credit should read YUI MOK/AFP/Getty Images)