[6] Orontes fought at the Battle of Gaugamela on the Persian right flank with 40,000 units of infantry and 7,000 of cavalry under his command,[7] where he died.

[1] Anson, on the other hand, considered it likely that at some point after the Battle of Gaugamela Orontes made his submission to Alexander, who later put him in charge of the Greater Armenia.

[16] One of the inscriptions from the Mount Nemrut detailing the ancestry of Antiochus I Theos of Commagene mentions an ancestor whose name was incompletely preserved, and who was a son of Aroandas.

[20] Aroandas II mentioned in an inscription from Mount Nemrut was identified with the Orontes who was a commander in the Battle of Gaugamela by Karl Julius Beloch[21] and Herman Brijder.

[14] On the other hand, Friedrich Karl Dörner was unsure whether ancient citations of connections of the bearers of the name Aroandas/Orontes with Armenia or their status as leaders of Armenian military units are compelling reasons for assuming that they were relatives.