The much-anticipated Downton Abbey movie premieres on September 20th—get ready to reunite with the Crawleys by checking out these historical reads and read-alikes that take the biscuit. The Real Downton Abbey: Lady Catherine, the Earl, and the Real Downton Abbey by The Countess of Carnarvon The story behind Highclere Castle, the setting for Julian Fellowes’s Emmy Award-winning PBS show Downton Abbey, and the life of one of its most famous inhabitants, Catherine Wendell. In this transporting companion piece to the New York Times bestseller Lady Almina and the Real Downton Abbey, Catherine, a beautiful and spirited American woman who married…