Which disease did one of the subjects of Charlotte Zeepvat's writing have?
Charlotte Zeepvat: Charlotte M. Zeepvat is an author and historian of European royal history. Charlotte Zeepvat:  She has written five books published by Sutton Publishing, including biographies of Prince Leopold, Duke of Albany and the Romanov Imperial Family. Prince Leopold, Duke of Albany:  He had haemophilia, which led to his death at the age of 30.
haemophilia