Seleukid Kingdom - 138-139 BC - Antiochos VII Sidetes was a Seleucid king who ruled Syria from 138 to 129 BC, known for restoring Seleucid territories and engaging in campaigns against the Parthians and Jewish rebels.
 
Antiochos VII, nicknamed Sidetes after the city of Side where he spent part of his youth, was born around 164–159 BC as the youngest son of Demetrius I Soter and Laodice. He was the brother of Demetrius II, who was captured by the Parthians in 141 BC. During his brother’s captivity, the Seleucid throne was threatened by the usurper Diodotus Tryphon, prompting Antiochos VII to return to Syria, marry his brother’s widow Cleopatra Thea, and secure his rule by defeating Tryphon by 138 BC Encyclopedia Britannica+1.Reign and Military Campaigns Antiochos VII successfully reunited the Seleucid territories and restored much of the empire’s former lands. He led campaigns against the Jewish population, including a siege of Jerusalem in 135/134 BC, which was facilitated by internal dissension among the Jewish leaders. According to historical accounts, the Hasmoneans paid a ransom to secure the city Encyclopedia Britannica+2.He also launched a major campaign against the Parthians, briefly regaining Mesopotamia and advancing into Media. Despite initial victories, he was ultimately ambushed and killed by the Parthians in 129 BC, marking the end of his significant military efforts and leaving the Seleucid Empire largely confined to Syria Wörterbücher und Enzyklopädien auf der Akademik+1.Family and SuccessionAntiochos VII and Cleopatra Thea had a son, Antiochos IX, who later became a Seleucid ruler. His reign bridged the period between his brother Demetrius II’s captivity and eventual return, after which Demetrius II resumed the throne, but the empire’s power was significantly reduced Wörterbücher und Enzyklopädien auf der Akademik+1.LegacyAntiochos VII is remembered as the last major Seleucid king to mount significant military campaigns and temporarily restore the empire’s territorial integrity. His coins, minted in cities like Tyre and Antioch, depict his diademed bust and symbols of Hellenistic authority, reflecting his efforts to consolidate power and legitimize his rule wildwinds.com. His death marked a turning point, after which the Seleucid state became increasingly fragmented and weakened.