Vasudeva

…overthrown by the Brahmin minister Vasudeva, who founded the Kanva dynasty, which lasted 45 years and following which the Magadha area was of greatly diminished importance until the 4th century ce.

The Brahman minister Vasudeva, the founder of the line, is stated to have served Shunga Devabhumi (Devabhuti). Bana, the 7th-century Sanskrit author, gives details of an assassination plot that cost Devabhumi his life and brought Vasudeva to power in about 72 bce.