In the course of history, Prince Dmitri Kantemir-also the Prince of Moldavia, Prince of the Russian Empire, Prince of the Holy Roman Empire and Imperial Chancellor to Peter the Great of Russia-lived in forced exile for 22 years. He became a great writer, statesman, scientist, and composer of Ottoman music. His children were prominent in Russian history: Antioch Kantemir became Russia's first satirist and Maria Kantemir was the last love of Peter the Great. Centuries later, American Ella Kantemir, researching her ancestry, makes a startling discovery: her father was hunted by the KGB; a number...