Causal relations of the Alavis with the Caliphate (Three caliphs, Al- Zubair and Umayyad caliphs)”

Marriages of “Ahl al-Bayt” families are one the controversial subjects in the history of Shiite. This thesis has tried to study Marriages of men and women of Ahl al-Bayt’s family with men and women of three early calipths’ family, Umayyad caliphs from both the Sofyanies and the Marvanies and also Al-Zubair’s family including the caliph, their children and descendents. The thesis also measures the amounts of casual relations of Ahl al-Bayt’s family with other families and clans by charts and graphs. The main question is that how were the mutual relations between Ahl al-Bayt and three early calipths’ family, Umayyad caliphs (the Sofyanies and the Marvanies) and Al-Zubair’s family? The achieved result shows that the most reports are related to marriages of Imam Sajjad’s descendents with Al-Zubair’s family. There is not any report for the marriages of Imam Bagher and Imam Sadegh with the caliphs and their descendents and in comparison with other Imams and the marriages of Ahl al-Bayt’s family Apart from the generation of the Caliphs are very low and scarce.