Qarmatians
The Qarmatians were an Isma'ili Shia militant movement led by an Arabized dynasty of Persian descent. Claiming an Alid descent, the Qarmatians were centred in al-Ahsa in Eastern Arabia, where they established a religious state in 899 CE. The Qarmatians adhered to a syncretic branch of Sevener Ismaili Shia Islam, and were ruled by a dynasty founded by Abu Sa'id al-Jannabi.