. . "Shaykh Haydar or Sheikh Haydar was the successor of his father (Shaykh Junayd) as leader of the Safaviyya from 1460-1488. Haydar maintained the policies and political ambitions initiated by his father. Under Sheikh Haydar, the Safaviyya became crystallized as a political movement with an increasingly extremist heterodox Twelver Shi'i coloring and Haydar was viewed as a divine figure by his followers."@en .