Biswa Singha [SEP] noble family
Biswa Singha
Biswa Singha (1515—1540) was the progenitor king of the Koch dynasty of the Kamata kingdom. His ethnicity was the Koch-Rajbongshi, a successor state of the ancient Kamarupa kingdom. A grandson of a Koch hero, he was able to unify different tribal groups against the Baro-Bhuyans of Assam and establish a kingdom the remnant of which still exists today.
Establishment of the Koch dynasty.
After break-up of the Kamarupa kingdom in the 12th century, its territories were divided among small kingdoms
" (over 1000 Paiks), "Omra" (over 3000 Paiks) and "Nawab" (over 66,000 Paiks).
Biswa Singha maintained his relationship with the tribals by appointing them exclusively as "Karji"s. The only Brahmin appointee was the royal priest ("raj purohit"). 
Viswa Singha formed alliances with various chiefs and kings around his kingdom via marriages. He had eighteen wives (from Nepal, Gaur, Kamarupa, Benaras, Mithila and Kashmir) who bore him eighteen sons. These sons were