The Mountbatten familyi s relationship with the British monarchy is so close that Prince Harry s children, Princess Lilibet and Prince Archie, carry its surname (hyphenated with Windsor).
One of the many controversies facing 'The Crown' is how it treats the relationship between Prince Philip and his cousin, Penelope Knatchbull as an affair.
Penny Knatchbull was known as the confidant and for Prince Philip after having met him and the Queen in 1974. With her friendship with Philip portrayed in the fifth season of The Crown , we look at who she was and how she and the Duke became close.