Sarbadars
The Sarbadars were a Shi'i state in western Khurasan, centered on Sabzavar. In 1337 'Abd al-Razzaq led a revolt against Togha Temür's governor, killed an official and seized the town.
Secular amirs shared power with a Shi'i dervish order. The Sarbadars lost at Zava in 1342 after Hasan Juri was killed, but murdered Togha Temür in his camp in 1353. Khwaja 'Ali-yi Mu'ayyad made Shi'ism the state creed and submitted to Timur in 1381; the Sarbadars retained their administration and faded after Timur's death.