Jewish traitor named in the Bible, and considered in the Middle Ages as being tormented in hell for all eternity.
From Numbers:
This is that Dathan and Abiram, which were famous in the congregation, who strove against Moses and against Aaron in the company of Korah, when they strove against the LORD. And the earth opened her mouth, and swallowed them up together with Korah, when that company died, what time the fire devoured two hundred and fifty men: and they became a sign.
And though it may be that he escaped punishment in this world, yet certes he could not escape it in hell, where he is tormented with Dathan and Abiram, and with Judas the Traitor, for ever and ever.