Britain's Prince William (R), Duke of Cambridge meets Charlie Miller, 3, with parents Daryl and Sally during a visit to the Royal Marsden hospital in Sutton on May 16, 2017. 
The Duke of Cambridge, President of the Royal Marsden NHS Foundation Trust, visited the hospital's facilities in Sutton. The Duke accompanied staff as they went about their daily activities in treating and caring for patients.  / AFP PHOTO / POOL / Kirsty Wigglesworth        (Photo credit should read KIRSTY WIGGLESWORTH/AFP/Getty Images)