Now Korah son of Izhar, the son of Kohath, the son of Levi, and Dathan and Abiram, the sons of Eliab, and On son of Peleth, who were Reubenites, took men

So they got away from the homes of Korah, Dathan, and Abiram on every side, and Dathan and Abiram came out and stationed themselves in the entrances of their tents with their wives, their children, and their toddlers.

Eliab’s descendants were Nemuel, Dathan, and Abiram. It was Dathan and Abiram who as leaders of the community rebelled against Moses and Aaron with the followers of Korah when they rebelled against the Lord.