Levi and his sons: Gershon, Kohath, and Merari.
Leah conceived the third time, gave birth to a son, and named him Levi, saying, “This time my husband will be joined to me, because now I’ve given him three sons!”
Simeon and his sons: Jemuel, Jamin, Ohad, Jachin, Zohar, and Shaul (the son of a Canaanite woman).
Judah and his sons: Shelah, Perez, and Zerah. (Judah’s other sons, Er and Onan, had died in Canaan.) Perez’s sons were Hezron and Hamul.