Bahraini monarchy

The Qarmatians were an Isma'ili Shia militant movement led by a dynasty of Persian descent, centred in Al-Ahsa in Eastern Arabia, where they established a religious state in 899 CE. Its members were part of a movement that adhered to a syncretic branch of Sevener Ismaili Shia Islam, and were ruled by a dynasty founded by Abu Sa'id al-Jannabi. They rejected the claim of Fatimid Caliph Abdallah al-Mahdi Billah to imamate and clung to their belief in the coming of the Mahdi, and they revolted against the Fatimid and Abbasid Caliphates.

royal family of Bahrain

dynasty that ruled the Province of Bahrain

The Usfurids () were an Arab dynasty that in 1253 gained control of Eastern Arabia, including the islands of Bahrain. They were a branch of Uqaylids who re-migrated to Arabia after the fall of their rule in Syria.