Qutubu'd-din Aibak (1206-1210) was crowned at Lahore after the death of Muhammad of Ghuri. He was originally a slave of Turkestan. As he started his career as a slave, the dynasty founded by him in India is known as "Slave Dynasty". The construction of Qutabminar was started during his regime. Since he was very generous, the people called him "Lakh Baksh".