Not Romanov related, but letting folks know:
My latest book, written with Sue Woolmans, Assassination of the Archduke: Sarajevo 1914 and the Romance That Changed the World, is now out in North America from St. Martin's Press; Macmillan will publish in the UK in 2 weeks. The book, which includes a forword by Princess Sophie Hohenberg, details the private story of Franz Ferdinand, Sophie, and their children, as well as the assassination in Sarajevo, and draws on previously unpublished letters written by Franz Ferdinand and Sophie, memories of the couples’ present-day descendants, and materials from archives in Vienna, Germany, Sarajevo, and the Royal Archives at Windsor.
Think "Nicholas and Alexandra" on the Danube...