Antiochus VII Euergetes, nicknamed Sidetes, also known as Antiochus the Pious, was ruler of the Hellenistic Seleucid Empire from July/August 138 to 129 BC. He was the last Seleucid king of any stature. After Antiochus was killed in battle, the Seleucid realm was restricted to Syria.

The Seleucid Empire was a Greek power in West Asia during the Hellenistic period. It was founded in 312 BC by the Macedonian general Seleucus I Nicator, following the division of the Macedonian Empire founded by Alexander the Great, and ruled by the Seleucid dynasty until its annexation by the Roman Republic under Pompey in 63 BC.