Qavam al-Din Shirazi
Qavam al-Din ibn Zayn al-Din Shirazi (died 1438) was a Persian architect of the Timurid period. A native of Shiraz, he served Shah Rukh at Herat as a master of engineering, design and building, and his activity was first recorded in 1410.
In an inscription of 1418 he called himself a worker in mud or clay. His monumental designs combined Iranian art with features of contemporary Central Asian buildings, and he pioneered a dome on intersecting arches.
For Queen Gawhar Shad he designed the Goharshad Mosque in Mashhad, begun in 1418, and the Musalla complex in Herat. He died in February 1438.