He was martyred on the Day of Ashura.Awn was a son of Zaynab, Husayn's sister, and Abd Allah ibn Ja'far ibn Abi Talib who was a companion of the Prophet.
[1] Awn's grandfather was Ja'far al-Tayyar who was appointed by the Prophet as the chief of Muslims in their migration to Abyssinia.
[4] When Abd Allah ibn Ja'far learned about Husayn's departure to Kufa, he wrote a letter to Imam to convince him to return to Mecca.
Abd Allah sent his letter to Imam by his sons Awn and Muhammad.
[5] When Abd Allah found that Imam was determined in his decision, advised his sons Awn and Muhammad to accompany him and fight along with Husayn.