Dr Carole Lieberman has blasted the Duke and Duchess of Sussex as “desperate” after it was revealed that their children’s last name has been changed to Sussex. Rather than being known as Mountbatten-Windsors, Archie and Lilibet have been known as Archie Sussex and Lilibet Sussex since King Charles’s Coronation in May 2023. A source at the time said: “The reality behind the new site is very simple — it’s a hub for the work the Sussexes do and it reflects the fact the family have, since the King’s Coronation, the same surname for the first time. They continued to the Times: “That’s a big deal fo…