Reu

Reu or Ragau (Hebrew: רְעוּ, romanized: Rəʿū; Biblical Greek: Ῥαγαύ, romanized: Rhagaú), according to Genesis in the Hebrew Bible, was the son of Peleg and the father of Serug, thus being Abraham's great-great-grandfather and the ancestor of the Israelites and Ishmaelites.