LONDON, ENGLAND - JUNE 12: Prince William, Duke of Cambridge gives a speech during "The Patron's Lunch" celebrations for The Queen's 90th birthday at on June 12, 2016 in London, England. (Photo by Danny Martindale/WireImage)
LONDON, ENGLAND - JUNE 12: Prince William, Duke of Cambridge gives a speech during "The Patron's Lunch" celebrations for The Queen's 90th birthday at on June 12, 2016 in London, England. (Photo by Danny Martindale/WireImage)