Analysis of information sources in references of the Wikipedia article "Sena dynasty" in English language version.
The Sena kings were probably Baidyas. The evidence of inscriptions shows that a dynasty of Baidya kings ruled over at least a part of Bengal from 1010 AD to 1200 AD. The most famous of these kings is Ballal Sena
It may be added that the Senas themselves came to be regarded as Vaidyas in the Vaidya Kula-pañjikās.