Janamejaya married Ananta, the daughter of Madhava. He begot on her a son, named Prachinvan. He was so called because he conquered all the countries in the east even where the sun rises.
जनमेजयः खल्वनन्तां नामोपयेमे माधवीम्। तस्यामस्य जज्ञे प्राचिन्वान्; यः प्राची दिशं जिगाय यावत् सूर्योदयात्, ततस्तस्य प्राचिन्वत्त्वम्॥