Siyavakhsh

Siyavakhsh (also spelled Siyavash) was an Iranian aristocrat from the House of Mihran who was descended from Bahram Chobin, the famous spahbed of the Sasanian Empire.

When Azarmidokht ascended the Sasanian throne as empress regnant in 630, the powerful spahbed (army chief) Farrukh Hormizd asked her to marry him.

Not daring to refuse, Azarmidokht requested Siyavakhsh's aid, who murdered Farrukh Hormizd.

[1] In 632, this civil war ended and the wuzurgan agreed to make Yazdegerd III emperor.

Farrukhzad led some of al-Nu'aym's cavalry by a little-known way into the city from where they attacked the Mihranid army's rear, causing great bloodshed.

Map of northern Iran during Sasanian rule.