Muhi al-Din Muhammad, commonly known as Aurangzeb, was the sixth Mughal emperor, reigning from 1658 until his death in 1707. His regnal name is Alamgir I, which derived from his title, Abu al-Muzaffar Muhi-ad-Din Muhammad Bahadur Alamgir Aurangzeb Badshah al-Ghazi. Under his emperorship, the Mughal Empire reached its greatest extent with territory spanning nearly the entirety of the Indian subcontinent.