Antiochus IX - Basileus of Basileía tōn Seleukidōn from 114 BC to 96 BC
Antiochus IX was the son of Antiochus VII Sidetes and Cleopatra Thea, and ruler of the Seleucid Empire from 116–96 BC. He ruled alongside his brother Antiochus VIII Grypus.

According to the description given by Diodorus, Antiochus IX resembled Antiochus IV in character and certainly resembled him in hostility to the Jews. The circumstances were different, however. The relative strength of Syria and Judea had changed, very much to the advantage of the latter. In 110-107 BC he attempted to lend assistance to the Samaritans, who were hard pressed by the Jews, but he was easily beaten off. A second attempt to subjugate Judea with the help of Egyptian soldiers failed as well.

He was killed in battle by the son of Grypus, Seleucus VI Epiphanes, in 96 BC.
Antiochus IX
King Antiochus IX "from Cyzicus" of the Seleucid Empire

Epithet: Cyzicenus ("from Cyzicus")

(1) Antiochus IX 113-112 BC
AE unit Antioch
Obverse: Diademed head right
Reverse: Winged thunderbolt; BAΣIΛEΩΣ / ANTIOXOY / ΦIΛOΠATOPOΣ Σ (TN) / *
Ref: SNG Spaer 2690
(2) Antiochus IX 114-95 BC
AE unit Antioch
Obverse: Diademed head Zeus right
Reverse: Turreted Tyche standing left holding rudder and cornucopia, prora below BAΣIΛEΩΣ / ANTIOXOY // ΦIΛOΠATOPOΣ
Ref: SC 2380; CSE 357; SNG Spaer 2715
(3) Antiochus IX 114-112 BC
AE unit Tarsos
Obverse: Diademed head right
Reverse: Dionysos standing left, leaning on thyrsos and holding kantharos; BAΣIΛEΩΣ / ANTIOXOY / ΦIΛO_ΠATOPOΣ E / (NK)
Ref: Cf. SNG Spaer 2725; Houghton 498