Lilibet and Margot were personal and private pet names to the Queen and her sister. Out of respect the media nor anyone used those names. Now that Megan and Harry decided to name their daughter Lilibet we’re seeing more use of both of those private pet names. I don’t think either one of them would approve and some feel the Queen was put on the spot or caught off guard when they asked her and so she gave a less than excited, and vague approval. I believe that.