Kiya Afrasiyab was the son of certain Hasan Chulabi, who belonged to the Chulabids, a prominent family of Mazandaran which served the Bavandids.

A son of Hasan managed to flee to the court of the Paduspanid ruler Eskandar II, who later tried to restore Bavand rule in Mazandaran, but failed to do so.

[1] Afrasiyab shortly tried to achieve stability by asking aid from Mir-i Buzurg, a Sayyid dervish from Dabudasht.

After having achieved great success during the campaign, Iskandar was allowed to return to Mazandaran, but shortly rebelled against Timur.

Kiya Husayn I, after having seen the head of his father, agreed to surrender to Timur, and was pardoned by the latter, who acknowledged him as the ruler of the Afrasiyab dynasty.

His grandson, Kiya Husayn II, ruled over a large part of western Mazandaran, and districts of Firuzkuh, Damavand, and Hari-rud.

During the dissolution of the Aq Qoyunlu confederation, Kiya Husayn II expanded his rule from western into central Iran, where he captured Ray and Semman.