Hydarnes in the context of "Tissaphernes"

Hydarnes (Old Persian: 𐎻𐎡𐎭𐎼𐎴, romanized: Vidṛna), also known as Idernes, was a Persian nobleman, who was active during the reign of Darius II (r. 423 – 404 BC). He was a descendant (perhaps grandson) of Hydarnes the Younger, who was himself the son of Hydarnes, one of the seven Persian conspirators who overthrew the Pseudo-Smerdis. He was the father of several children through his principal consort. His offspring included Tissaphernes, Terituchmes, Stateira, Rhoxane, and two further daughters.

Orontes I (Old Persian: *Arvanta-; died 344 BC) was a military officer of the Achaemenid Empire and satrap of Armenia at the end of the 5th-century BC and first half of the 4th-century BC. He is notable for having led the unsuccessful Great Satraps' Revolt in Asia Minor against the Achaemenids from 362/1 BC to 360/359 BC.

He was the son of Artasyrus, a high-ranking Bactrian nobleman. Through his maternal line, Orontes traced his descent back to the Persian magnate Hydarnes, one of the six companions of the King of Kings Darius the Great (r. 522–486 BC). Orontes first appears in records in 401 BC as the satrap of Armenia. There he participated in the Battle of Cunaxa, where he pursued the Ten Thousand following their retreat. In the same year, he married Rhodogune, a daughter of Artaxerxes II (r. 404–358 BC).

Hydarnes II (Old Persian: 𐎻𐎡𐎭𐎼𐎴, romanized: Vidṛna), also known as Hydarnes the Younger (by contrast with his father Hydarnes the Old) was a Persian commander of the Achaemenid Empire in the 5th century BC. He was the son of Hydarnes, satrap of the Persian empire and one of the seven conspirators against Gaumata.

During the reign of Xerxes I, Hydarnes was one of the commanders for the Second Persian invasion of Greece in 480 BC. He was appointed as the leader of the 10,000-man contingent of "Immortals", while his brother Sisamnes commanded the levy of the Aryans.