Exodus 6:21-24

The sons of Izhar were Korah, Nepheg, and Zicri. The sons of Uzziel were Mishael, Elzaphan, and Sithri. Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon, and she gave birth to his sons, Nadab, Abihu, Eleazar, and Ithamar. The sons of Korah were Assir, Elkanah, and Abiasaph. Their descendants became the clans of Korah.