Kate Middleton made a poignant appearance alongside the royal family at Trooping the Colour, one year after her powerful return to public life amid cancer treatment.

The Royal Family will be honouring their fathers as they celebrate Father's Day on Sunday and royal expert Jennie Bond says it will be an especially poignant day for the Prince and Princess of Wales

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.