Tetrarch

Tetrarch, Tetrarchs, or Tetrarchy may refer to:Tetrarchy, the four co-emperors of the Roman Empire instituted by the Emperor Diocletian Portrait of the Four Tetrarchs - a sculpture of the four co-emperors of the Roman Empire Herodian Tetrarchy, formed by the sons of Herod the Great Tetrarch, Military rank in ancient Greek armies Tetrarch (novel), a 2003 novel by Ian Irvine Light Tank Mk VII Tetrarch, a British light tank of World War II The Tetrarch, a Thoroughbred racehorse The Tetrarchs of Ancient Thessaly under Philip II of Macedon The Tetrarchs of Galatia in Asia Minor Tetrarches, a rank in the Byzantine army Tetrarch, a 1981 fantasy novel by Alex Comfort Tetrarch (band), a nu metal band from Atlanta, Georgia Tetrarchy, a subdivision of the Royal Phalanx in 19th-century Greece HMS Tetrarch is the name of two vessels that have served in the Royal Navy