William and Catherine of Cambridge and Harry and Meghan of Sussex, who have all been living in Kensington Palace and have become known as the Fab Four, are splitting. Harry and Meghan, who are expecting their first child, are moving to Frogmore at Windsor, and will no longer be a team with William and Catherine. (Yes, her name is Catherine, not Kate!) While we can still expect to see them together, it will be more rare, and less often. If you want to see a royal sibling and spouse group, watch out for Princesses Beatrice and Eugenie of York plus Jack Brooksbank, Princess Eugenie's husband, and maybe even Edoardo Mapelli, Princess Beatrice's new boyfriend. Image by Mark Jones