King Charles is a doting grandfather to the Wales kids - but has barely spent any time with Prince Archie and Princess Lilibet.
Prince Harry and Meghan Markle's children, who are sixth and seventh in line to the throne, spend most of their time in California away from the Royal Family.
It's not been announced whether the Duke and Duchess of Sussex will attend King Charles' Coronation, but it's believed their children definitely won't be going.