Razia Sultan belonging to the Mamluk Dynasty (Slave Dynasty) was the Sultan of Delhi from 1236 to 1240. She was the first Muslim female ruler. Her ascent to the throne is of much historical significance not only because she was a woman, but also because her ancestors were originally slaves, not nobility. Her father Iltutmish had come to Delhi as a slave serving under Qutb-ud-din and had risen to the post of a provincial governor.