Shah-Mahmud Nishapuri is one of the most esteemed masters of nasta'liq. He worked for Shah Tahmasp in Tabriz and finally retired to Mashhad, where he lived until his death in 1564–5. He worked on two of the best-known manuscripts of his time, the Khamsah made for Shah Tahmasp and part of the Haft Awrang which was made for Sultan Ibrahim Mirza, but is perhaps most famous for having copied a Qur'an in nasta'liq.