The Khanate of Nishapur (Persian: خاننشین نیشابور), also known as the Qara Bayat Amirdom (امیرنشین قره بیات),[1] was a semi-independent state[1] ruled by the Bayat tribe[1][2] that existed in Khorasan from 1747[3][1] to 1800,[4][5] whose capital was in the city of Nishapur.