LONDON, ENGLAND - DECEMBER 15: Thomas Melville-Ross 12 joins Camilla, Duchess of Cornwall, patron of the Helen & Douglas House and The London Taxidrivers' Fund as she invites underprivileged children from both charities to decorate the Christmas tree and join the Duchess for Christmas lunch at Clarence House on December 15, 2015 in London, England. (Photo by Geoff Pugh - WPA Pool / Getty Images)