Arsaces I (ca. 247-211 B.C.) - After the fall of the Persian Empire at the hands of Alexander the Great, the Persian people didn't just go away; they lived for a time under Greek rule. When Alexander's kingdom broke up, this region came under the control of the Seleucid Kingdom. It was called the province of Parthia. Around 250 B.C., the satrap of Parthia, a man named Andragoras, broke away from Seleucid Empire. Antiochus II, king of the Seleucid Empire, was at war with the Ptolemaic Empire at the time and was in no position to stop him. Andragoras' reign was short-lived however. About 247, another man named Arsaces of the Scythian tribe (see Scythians) known as the Parni, rose to become leader of his people and overthrew Andragoras. He then founded the Parthian Empire which would endure for over four centuries and become one of Rome's chief rivals on its (Rome's) eastern border (see Battle of Carrhae).