Exodus 6:21

The sons of Kohath: Amram, and Izhar, and Hebron, and Uzziel; and the years of the life of Kohath were one hundred thirty-three years.

The sons of Merari: Mahli and Mushi. These are the families of the Levites according to their generations.

Amram took Jochebed his father’s sister to himself as wife; and she bore him Aaron and Moses. The years of the life of Amram were one hundred thirty-seven years.

The sons of Uzziel: Mishael, Elzaphan, and Sithri.

Aaron took Elisheba, the daughter of Amminadab, the sister of Nahshon, as his wife; and she bore him Nadab and Abihu, Eleazar and Ithamar.

The sons of Korah: Assir, Elkanah, and Abiasaph; these are the families of the Korahites.