Afghanistan, India, Bengal: Sher Shah Suri (1486 - May 22, 1545), also known as Sher Khan (The Lion King), was a powerful Afghan (Pashtun) conqueror in medieval Delhi, India. He first served as a private before rising to become a commander in the army of Mughal leader Babur and finally the governor of Bihar. In 1537, when the new Mughal leader Humayun was elsewhere on an expedition, Sher Shah Suri overran Bengal and became the new emperor after establishing the Suri Empire.