I think Diana looks very much like Cynthia Spencer, her grandmother. The only resemblance to Jemima is her thick hair, color of hair and nose. Jemima looks a lot like her mother, Annebelle. But Diana looks like her sister Jane and her mother Francis. Diana had her mother's hair and nose.
I really think Diana is a true Spencer looking at her grandmother Spencer portrait. She also had a special bond with Cynthia Spencer-I wish her grandmother would have lived longer to help guide Diana. Diana is REALLY a Spencer in looks and personality. This NEW BOOK IS TRASH!!!!