Bilhah

Now the sons of Jacob were twelve: The sons of Leah; Reuben, Jacob's firstborn, and Simeon, and Levi, and Judah, and Issachar, and Zebulun: The sons of Rachel; Joseph, and Benjamin: And the sons of Bilhah, Rachel's handmaid; Dan, and Naphtali: And the sons of Zilpah, Leah's handmaid; Gad, and Asher: these are the sons of Jacob, which were born to him in Padan-aram.