Genesis 36:12

( Timna was a concubine of Eliphaz , Esau’s son ; she bore Amalek to Eliphaz .) These are the sons of Adah , Esau’s wife .

Esau`s son Eliphaz also had a concubine named Timna, who bore him Amalek. These were grandsons of Esau`s wife Adah.

And Timna was concubine to Eliphaz Esau's son; and she bare to Eliphaz Amalek : these were the sons of Adah Esau's wife.