Naraka
In Mahabharata
Naraka was an Asura, son of Goddess Earth born to Varaha, an avatar of Vishnu. Earth had obtained Vaishnava weapon from Narayana to make her son Naraka invincible. He was the king of Pragjotisha. One of his descendents was Bhagadatta, who fought along side Duryodhana and who was killed by Arjuna on the 12th day of war.