To mark Lady Susan Hussey's 80th Birthday today, I released an article on her
family (the Earls of Waldegrave) Tiara, HERE, which I have been researching for over two years! I found the Tiara was worn by the 9th Countess at the Coronation of King Edward VII and Queen Alexandra in 1902, and has been worn by Lady Susan for the past few decades! I would love to know what other information you all have about this piece!