Hasan ibn Ali ibn Muhammad (Arabic: حَسَن ٱبْن عَلِيّ ٱبْن مُحَمَّدُ, romanized: Ḥasan ibn ʿAlī ibn Muḥammad; c. 846 – 874), better known as Hasan al-Askari (Arabic: حَسَن ٱلْعَسْكَرِيّ, romanized: Ḥasan al-ʿAskarī), was a descendant of the Islamic prophet Muhammad. He is regarded as the eleventh of the Twelve Imams, succeeding his father, Ali al-Hadi. Hasan Al-Askari was born in Medina in 844 and brought with his father to the garrison town of Samarra in 848, where the Abbasid caliphs held them under close surveillance until their deaths, even though neither were politically active. After the death of al-Hadi in 868, the majority of his following acknowledged his son, al-Askari, as their next Imam. Al-Askari's contact with the Shia population was restricted by the caliphs and instead he c