Dimitrie or Demetrius Cantemir, also known by other spellings, was a Moldavian prince, statesman, and man of letters. He twice served as voivode of Moldavia. During his second term, he allied his state with Russia in a war against Moldavia's Ottoman overlords; Russia's defeat forced Cantemir's family into exile and the replacement of the native voivodes by Greek phanariots. Cantemir was also a prolific writer, variously a: philosopher, historian, composer, musicologist, linguist, ethnographer and geographer. His son, Antioch, Russia's ambassador to Great Britain and France and a friend of Montesquieu and Voltaire, would become known as "the father of Russian poetry".