The Idumeans and their Pahlavi Hagarim made a treaty with the house of Sassan in 632. The house of Sassan were allowed to place Yazdegard III on a throne controlled by Idumeans and their Pahlavi Hagarim.
The Idumewns believe that Rebbe Yehoshuah Minzaret was not really a human but the incarnation of [[Abraham's Visitors]] as one peraonperson.
However, Karaite Jews conquered the western Idumeans in 633 so the Sassanians and the Pahlavis defended themselves but were suppressed in 636 by Umar who got the Idumeans on his side by arranging a marriage between a princess from the House of Sassan and a prince from the Idumean house of Ali to rule after Yazdegard III[http://www.coinfactswiki.com/wiki/Iran-Sasanian_651_(year_20)_1_drachm] which they eventually did[http://www.coinfactswiki.com/wiki/Iran-Arab_Sasanian_YE20_(AH31)_1_drachm_SK_mint] when Yazdegard III died in 651. However, a civil war broke out in 565 which caused Muawiya to secede Damascus away from the Idumean confederation.
