Amalek

Amalek (Hebrew: עֲמָלֵק, Amalek ʻĂmālēq) is a figure in the Hebrew Bible. According to the Book of Genesis and 1 Chronicles, Amalek was the son of Eliphaz and of the concubine Timna. Timna was a Horite and sister of Lotan. Amalek was the grandson of Esau (Gen. 36:12; 1 Chr. 1:36) who was the chief of an Edomite tribe (Gen. 36:16).

At Genesis 36:16, Amalek is described as the "chief of Amalek", and thus his name can be construed to refer to a clan or a territory over which he ruled. Josephus calls him a 'bastard' (νόθος), though in a derogative sense.A late extra-Biblical tradition, recorded by Nachmanides, maintains that the Amalekites were not descended from the grandson of Esau but from a man named Amalek, from whom the grandson took his name. An eponymous ancestor of the Amalekites is also mentioned in Old Arabian poetry.

Read more about Amalek:  Amalekites, War Against The Amalekites, In Rohl's Reconstruction, Amalekites in Post-biblical Era