Nizam al-Din Yahya

Nizam al-Din Yahya (c. 1417 – October 1480) was the Mihrabanid malik of Sistan from 1438/1439 until his death. He was the son of Shams al-Din 'Ali.

Nizam al-Din gained the throne of Sistan after his father's death in 1438 or 1439. During his reign he spent a significant amount of time at the court of the Timurids at Herat. Some time after Abu Sa'id's capture of Khurasan in 1458, Nizam al-Din was summoned by the Timurid to Herat. There he was given one of Abu Sa'id's sisters in marriage.

In 1468 Abu Sa'id undertook a military campaign against the Aq Qoyunlu Turkmen of Azerbaijan. Nizam al-Din participated in this operation, leading a part of the army of Sistan. Ultimately the campaign ended in disaster; both Abu Sa'id and Nizam al-Din captured by the Aq Qoyunlu, who went on to briefly occupy Herat. The Turkmen leader Uzun Hasan imprisoned Nizam al-Din for six months. He eventually released him and restored him as governor of Sistan, while also giving him land grants in parts of Fars and Kerman. Ultimately the Timurids under Husayn Bayqarah managed to retake Herat, but Nizam al-Din may also been compelled to pay tribute to Uzun Hasan for a while.

The last years of Nizam al-Din's rule were marred by internal discord. The malik had grown wary of the power of his commander-in-chief (sipahsalar) Mir Sayyid Ahmad and his five sons, who held several governorships in parts of Sistan. In around 1475 Nizam al-Din led a campaign to assert his authority over the Garmsir region and Makran, with Mir Sayyid Ahmad and his sons participating. When the Mihrabanid army reached the Helmand River Nizam al-Din planned to arrest the sipahsalar and his family, but they were warned about the plot and managed to flee.

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