The Wales family shared a new portrait of Prince William with his three children – George, Charlotte and Louis – following by a candid shot of the children piled on top of their dad.
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A post shared by The Prince and Princess of Wales (@princeandprincessofwales)
Meanwhile, King Charles and Queen Camilla remembered their own dads by sharing photographs of them to their social media pages.
Meghan, the Duchess of Sussex also marked the occasion, posting a video of idyllic family scenes.