Diana Mandache is a historian specialized in royal history. She has published a series of books among them "The Balchik of Queen Marie", "King Michael. A Historical Album”, "Fatherland and Destiny. The Crown Princess of Romania"; "Dearest Missy. The Letters of Marie Alexandrovna, Grand Duchess of Russia, Duchess of Edinburgh and of Saxe-Coburg-Gotha and Her Daughter, Marie Crown Princess of Romania 1879-1900"; "Images of a Queen"; "Later Chapters of My Life. The Lost Memoir of Queen Marie of Romania"; "Romania, Central Europe and the Balkans". Diana is based in Bucharest.