Syennesis III () was a ruler of

ancient Cilicia Cilicia () is a geographical region in southern Anatolia, extending inland from the northeastern coasts of the Mediterranean Sea. Cilicia has a population ranging over six million, concentrated mostly at the Cilician plain (). The region inclu ...

in the 5th century BCE.

Rule

Syennesis was a contemporary of

Artaxerxes II of Persia Arses (; 445 – 359/8 BC), known by his regnal name Artaxerxes II ( ; ), was King of Kings of the Achaemenid Empire from 405/4 BC to 358 BC. He was the son and successor of Darius II () and his mother was Parysatis. Soon after his accession, ...

, and when

Cyrus the Younger Cyrus the Younger ( ''Kūruš''; ; died 401 BC) was an Achaemenid prince and general. He ruled as satrap of Lydia and Ionia from 408 to 401 BC. Son of Darius II and Parysatis, he died in 401 BC in battle during a failed attempt to oust his ...

, marching against Artaxerxes in 401 BCE, arrived at the borders of

Cilicia Cilicia () is a geographical region in southern Anatolia, extending inland from the northeastern coasts of the Mediterranean Sea. Cilicia has a population ranging over six million, concentrated mostly at the Cilician plain (). The region inclu ...

, he found the passes guarded by Syennesis, who, however, withdrew his troops on receiving intelligence that the force advanced by Cyrus under

Meno ''Meno'' (; , ''Ménōn'') is a Socratic dialogue written by Plato around 385 BC., but set at an earlier date around 402 BC. Meno begins the dialogue by asking Socrates whether virtue (in , '' aretē'') can be taught, acquired by practice, o ...

had already entered Cilicia, and that the combined fleet of the

Lacedaemonians Sparta was a prominent city-state in Laconia in ancient Greece. In antiquity, the city-state was known as Lacedaemon (), while the name Sparta referred to its main settlement in the valley of Evrotas river in Laconia, in southeastern Pe ...

and the prince, under Samius and Tamos, was sailing round from

Ionia Ionia ( ) was an ancient region encompassing the central part of the western coast of Anatolia. It consisted of the northernmost territories of the Ionian League of Greek settlements. Never a unified state, it was named after the Ionians who ...

. When Cyrus reached Tarsus, the Cilician capital, he found that Meno's soldiers had sacked the city, and commanded Syennesis to appear before him. Syennesis had fled for refuge to a stronghold among the mountains, but he was induced by his wife, Epyaxa, to obey the summons of Cyrus. Here he received gifts of honor from Cyrus, whom he supplied in his turn with a large sum of money and a considerable body of troops under the command of one of his sons. At the same time, however, Syennesis took care to send his other son to Artaxerxes, to represent his meeting with Cyrus as having been something he'd been forced to do, while his heart all the time was with the king, Artaxerxes. From

Xenophon Xenophon of Athens (; ; 355/354 BC) was a Greek military leader, philosopher, and historian. At the age of 30, he was elected as one of the leaders of the retreating Ancient Greek mercenaries, Greek mercenaries, the Ten Thousand, who had been ...

's telling it appears that Syennesis at this time, though really a vassal of Persia, affected the tone of an independent sovereign.

Diodorus Siculus Diodorus Siculus or Diodorus of Sicily (; 1st century BC) was an ancient Greece, ancient Greek historian from Sicily. He is known for writing the monumental Universal history (genre), universal history ''Bibliotheca historica'', in forty ...

, ''

Bibliotheca historica ''Bibliotheca historica'' (, ) is a work of Universal history (genre), universal history by Diodorus Siculus. It consisted of forty books, which were divided into three sections. The first six books are geographical in theme, and describe the h ...

'' xiv. 20

Coinage

File:CILICIA, Tarsos. Circa 425-400 BC.jpg, Possible coin of Syennesis, Tarsos. Circa 425-400 BC. Satrap on horseback riding left; behind, eagle perched left on branch; monogram below / Archer in kneeling-running stance right, drawing bow; monogram behind.

Notes

{{DGRBM, author=EE, title=Syennesis, volume=3, page=949, url=http://quod.lib.umich.edu/m/moa/acl3129.0003.001/957 5th-century BC monarchs in Asia Anabasis (Xenophon) People from ancient Cilicia Achaemenid satraps of Cilicia