Hasan ibn `Ali ibn Abi Ṭalib (Arabic: الحسن بن علی بن أبی طالب , 625–670 CE), commonly called Hasan, was the second Shiite Imam, succeeding his father Ali and preceding his younger brother Husayn ibn Ali
. He was the elder son of Ali and Muhammad's daughter,Fatimah. Muslims respect him as the grandson of Muhammad and a member of Ahl al-Bayt and Ahl al-Kisa.
After the death of his father, Hasan also succeeded him as Rashidun Caliph. He abdicated after six or seven months, and Muawiyah, who became the firstUmayyad Caliph, succeeded him.[7][8] For the rest of his life, Hasan lived in Medina in seclusion until he died at the age of 45 or 46, and was buried in the Al-Baqi' cemetery in Medina. His wife, Ja'da is commonly accused of having poisoned him at the instigation of Muawiyah
