Doubtful
That looks like Kate's friend.
https://www.google.com/url?sa=i&url=https%3A%2F%2Fstylecaster.com%2Fentertainment%2Fcelebrity-news%2F1608625%2Fkate-middleton-rose-hanbury-still-friends%2F&psig=AOvVaw1-hujDqlIGxZJH71P2CYej&ust=1710885397631000&source=images&cd=vfe&opi=89978449&ved=0CBEQjRxqFwoTCJD1-_rm_oQDFQAAAAAdAAAAABAD