The first Mughal Emperor, Babur, was succeeded by his son, Humayun, who ruled in India for a decade but was expelled. Eventually he took refuge with the Safavid shah of Persia, who helped him regain Delhi in 1555, the year before his death. Humayun's Persian wife, Hamida Begum, supervised the construction from 1562-1572 of her husband's tomb in Delhi. The architect, Mirak Mirza Ghiyuath, was Persian and had previously designed buildings in Herat (now northwest Afghanistan), Bukhara (now Uzbekistan), and elsewhere in India. The location chosen for the building on the bank of the Yamuna river adjoins the shrine of an important Sufi Chistiyya order saint, Nizam al-Din Awliya. The Chistiyya was particularly venerated by the Mughals; Humayun's son, Akbar, would build his new palace at Fatehpur Sikri next to the shrine of another saint of the Chistiyya order. The tomb established some of the important norms for later Mughal mausolea. It is