Prince William and his brother, Prince Harry, attending the 'Beating The Retreat' ceremony outside Kensington Palace in London, England, Great Britain, 29 June 1989. (Photo by Tim Graham Photo Library via Getty Images)
Prince William and his brother, Prince Harry, attending the 'Beating The Retreat' ceremony outside Kensington Palace in London, England, Great Britain, 29 June 1989. (Photo by Tim Graham Photo Library via Getty Images)