Seleucus V Philometor

The Seleucid king Seleucus V Philometor (Greek: Σέλευκος Ε΄ ὁ Φιλομήτωρ; 126/125 BC), ruler of the Hellenistic Seleucid kingdom, was the eldest son of Demetrius II Nicator and Cleopatra Thea. The epithet Philometor means "mother-loving" and in the Hellenistic world usually indicated that the mother acted as co-regent for the prince.

Source: Wikipedia — https://en.wikipedia.org/wiki/Seleucus_V_Philometor