Kārttavīrya’s Allied Kings Confront Jāmadagnya Rāma
Bhārgava-Charita
बृहद्बलः सोमदत्तो विदर्भो मिथिलेश्वरः / निषधाधिपतिश्चैव मगधाधिपतिस्तथा
bṛhadbalaḥ somadatto vidarbho mithileśvaraḥ / niṣadhādhipatiścaiva magadhādhipatistathā
Brihadbala, Somadatta, Vidarbha, the Lord of Mithila, the Lord of Nishadha, and the Lord of Magadha.