A lot of that is fiction, if I'm not mistaken.
No doubt, but the point is it's a way for kids to be familiar with Grand Duchess Anastasia. The book publishers were right to use a painting, not a photograph, and provide a disclaimer at the end, so it's not mistaken as absolute fact. The publishers of this other book are just so...so wrong. I went to their website to try to leave feedback, but that part of the site was unavailable. When it becomes possible, please post it here so we can all tell them how wrong they are!