Imam Al-Hasan ben Ali (transliterated also into Imam Hassan, Imam Al-Hassan) is the second Imam for Shiite Muslims. He was born on 15 Ramadan 3 AH (≈4 March 624) in the holy city of Medina. His father is Imam Ali ben Abi-Talib and his mother is Lady Fatima, the Prophet’s Muhammad daughter. His teknonymic (Kunya)is Abo Muhammad and his title is Al-Mujtaba.
Imam Al-Hasan has become the successor Imam shortly after the martyrdom of his father Imam Ali on 21 Ramadan 40 AH (≈27 January 661). However, the acute military opposition from Mu‘awiya ben Abi-Sufyan, which led to bloodshed, obliged Imam Al-Hasan to sign a treaty with Mu‘awiya on 26 Rabi‘ Al-Awaal 41 AH (≈30 July 661) in order to save the lives of Muslims.
Imam Al-Hasan grew up in his grandfather’s house, and thus similar to his father Imam Ali ben Abi-Talib he grasped the morals and the divine knowledge from Prophet Mohammad (Peace be Upon him and his Family) who was calling him and his brother Imam Al-Hussein “my sons” and titled each of them “Imam.”
Imam Al-Hasan passed away on 28 Safar 50 AH (≈2 April 670) after he was poisoned by one of his wives Ja‘da bint Al-Ash‘ath.It is believed that the plot of assassination has been made by Mu‘awiya who seduced Ja‘da to kill her husband Imam Al-Hasan, promising her that she will marry his son Yazid.
Imam Al-Hasan is buried in Medina at Al-Baqi‘ cemetery (called also Jannat Al-Baqi‘), south-east of the Prophet Muhammad’s Masjid.