Genesis 36:16
Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah. Duke Korah, duke Gatam, and duke Amalek: these are the dukes that came of Eliphaz in the land of Edom; these were the sons of Adah.
Genesis 36:16 belongs to the account of Esau and the nations that sprang from him. Its historical setting falls when Jacob was about 109 years old. At that same time Joseph was 17, and Benjamin was still a small child two to four years old.