Ramayana
श्रूयते हि पुरा राजा नृगो नाम महायशाः । बभूव पृथिवीपालो ब्रह्मण्यः सत्यवाक् शुचिः ॥ 7-53-7 ॥
For it is told that long ago there was a king of great renown named Nriga, a protector of the earth, devoted to the brahmins, truthful in speech, and pure.
english translation