Hi! Sorry, but I had to revert your edits concerning the surname of Diana. Even if she is the daughter of John Blackwell, she is Diana Meade from a legal point of view. Charles is her father from this same point of view. On her birth certificate, it is highly likely that her name is Meade, since no one knew about John and Elizabeth's hook-up. So, Diana is and remains 'Diana Meade'. I hope you understand.