The Princess of Wales was at the Garter Day Service at St. George’s Chapel, Windsor Castle, an event she missed last year due to her cancer treatment

Members of Britain's royal family gathered at London's Buckingham Palace on Saturday for Trooping the Colour, including Prince William and Kate, the Princess of Wales, and their three children, Princes George and Louis and Princess Charlotte.

The shared Instagram account for Kate Middleton and Prince William welcomed a trio of guest posters Sunday, when children Prince George, Princess Charlotte, and Prince Louis took the platform over. The occasion: Father's Day, with a post in tribute to their dad, the Prince of Wales.