Agenor Seleukid

Agenor Seleukid was a son of Antiochos I who became heir of the Seleukid Empire during Onomastos I's reign. His death before Onomastos' resulted in him never asceding to the thrones.

Seleukid-Antigonid War
During the Second Seleukid-Antigonid War Agenor raised his own army of 14,000 men to join the war and garner support for himself. He operated independently of the rest of the Seleukid forces leading his forces deep into Cappadocia where he succesfully disrupted Antigonid operations and won a number of minor battles.

Later life
Agenor would often be seen with Neoptolemos, another pretender to the Seleukid throne. Suspicious of their motives, Seleukos II intervened to drive them apart. After Seleukos' passing Agenor would become heir during the reign of Onomastos I.