She’s not royalty. Her title is a courtesy title, without the HRH that distinguishes royals from non-royals. She lost her HRH after the divorce. She came from the lower gentry while Diana came from the higher aristocracy.
Her daughters are fat, spoiled, uncultured oafs. Seeing them with their $900 hats at the horse races reminds me of putting lipstick on a pig: what a waste of a $900 hat!