Robert Lacey was quoted in this Washington Post article about Harry and Meghan.
Robert said:
Neither Meghan nor Harry have anything special to do with the county of Sussex,” says Robert Lacey, “and now they have been told they are not royal . . . I think they should go out to the world as ‘Harry and Meghan.’ That’s who they are, and that’s what people love and respond to. Sussex is a posh, old-fashioned pre-revolution title of privilege and distinction, and most people, especially young people, don’t get it. They should leave all that behind.”
You can read the full article: https://www.washingtonpost.com/world/europe/prince-harry-joins-meghan-in-canada-without-the-half-in-half-out-royal-deal-they-wanted/2020/01/21/e9f08cba-3c29-11ea-afe2-090eb37b60b1_story.html