Shashanka

…Kamarupa and warred against King Shashanka of Gauda, his brother’s assassin. At first he did not assume the title of king but merely acted as a regent; after making his position secure, however, he declared himself sovereign ruler of Kannauj (in Uttar Pradesh state) and formally transferred his capital to…

…dynasties before being conquered by Shashanka, king of Gauda (lower Bengal). In the early 7th century Shashanka annexed a substantial part of the Ganges valley, where he came into conflict with the Maukharis and the rising Puspabhuti (Pushyabhuti) dynasty of Thanesar (north of Delhi).