Naga was a member of the water breathing humanoid race Homo mermanus which settled in Lemuria centuries after the continent was submerged during the Great Cataclysm.

Approximately 600 years ago, Naga was the ruler of Lemuria when the Serpent Crown was discovered among the ruins of the old human built cities in the kingdom.

Attempting to attain even more power for herself, Llyra manipulated the by now senile and possibly insane Naga into arranging her marriage to his oldest surviving son, Merro, wanting to became empress of Lemuria herself.

[5] Lemurian agents led by Karthon the Quester stole the Crown from Namor the Sub-Mariner and returned it to Naga in Lemuria, who immediately donned it and once again accessed its vast powers.

[7] Later, in the 1989 Atlantis Attacks crossover, when the Deviant Set worshiper Ghaur created a massive, new Serpent Crown, Naga's spirit returned again.