After the collapse of the Gupta Empire, it was Harsha of Kanauj (a place now in Uttar Pradesh state of India) who united the northern parts of India in one kingdom. After his death several dynasties tried to control north India and ruled from time to time from 7th century till the 9th century as described in some of the sections below. Some of these dynasties were the Pratiharas of Malwa and later Kannauj; the Palas of Bengal, and the Rashtrakutas of the Deccan.