With the break-up of the Gupta Empire (550 CE), northern India was controlled by warring states, which attempted to fill the vacuum created by the Guptas. Among these were Yasodharman of Malwa, the Maitrakas of Vallabhi, and Emperor Harshavardhana of Thanesar. Emperor Harshavardhana brought the whole of North India under his control in the 7th century. But by the early 8th century North India was once again divided into several kingdoms, the most powerful of which were the Gurjara Pratihara dynasty and the Pala dynasty. Sindh was controlled by the Brahmin King King Dahir of the Rai dynasty, although his kingdom too was convulsed by internal strife.[citation needed]