In the summer of 1914, three great empires dominated Europe: Germany, Russia, and Austria-Hungary. Four years later all had vanished in the chaos of World War I. One event precipitated the conflict, and at its heart was a tragic love story. When Austrian heir Archduke Franz Ferdinand married for love against the wishes of the emperor, he and his wife Sophie were humiliated and shunned, yet they remained devoted to each other and to their children....