Harivamsha 23.71

23.71

sukumārasya putras tu satyaketur mahārathaḥ
suto 'bhavan mahātejā rājā paramadhārmikaḥ
karantur nāma nṛpatis tasya putrau babhūvatuḥ |
brahmaṇyau satyasaṃpannau bhārgo vatsas tathaiva ca |
vatsasya vatsabhūmis tu bhārgabhūmis tu bhārgavāt //

The son of Sukumāra was the great chariot-warrior Satyaketu. / His son was a king of great glory, supremely righteous, / a ruler named Karantu; he had two sons, / devoted to the brahmins, endowed with truth: Bhārga and Vatsa. / From Vatsa came Vatsabhūmi, and from Bhārgava, Bhārgabhūmi.