Royal family shares delightful moments from Garter Day ceremony

King Charles led his first procession as monarch at the annual Garter Day ceremony on Monday

Members of the royal family arrive at Windsor Castle for Garter Day

Royals arrive for historic Order of the Garter procession as thousands of fans line the route

Royals at Windsor Castle for King Charles' first Order of the Garter service

King Charles shares never-before-seen photo in birthday message to

Prince William and Kate Middleton's sweet moment at Order of the Garter ceremony

Prince William and Kate Middleton's sweet moment at Order of the Garter ceremony

Prince Harry: Prince Harry's biographer makes startling

Royal family attends Garter Day service at Windsor Castle

In Pictures: A History of Garter Day