Abu'l Muzaffar Muhi-ud-Din Muhammad (1618-1707) commonly known as Aurangzeb or by his regnal title Alamgir ("He who seizes the universe"), was the sixth, and widely considered the last effective Mughal Emperor. He ruled over most of the Indian subcontinent during some parts of his reign, which lasted for 49 years from 1658 until his death in 1707. Aurangzeb was a notable expansionist and during his reign, the Mughal Empire temporarily reached its greatest extent. During his lifetime, victories in the south expanded the Mughal Empire to more than 3.2 million square kilometres and he ruled over a population estimated as being in the range of 100-150 million subjects, with an annual yearly tribute of £38 million in 1690.