The Mahabharata/Book 1: Adi Parva…
“ And when the king was laid low by Takshaka's poison, his councillors with the royal priest--a holy Brahmana--performed all his last rites. All the citizens, assembling together, made the minor son of the deceased monarch their king. And the people called their new king, that slayer of all enemies, that hero of the Kuru race, by the name of Janamejaya. ”
