Yiram of Magdiel
Yiram of Magdiel was a minor Italian Jewish commentator on the Bible, active in Rome. The term Magdiel, which appears in Genesis 36:43, was apparently interpreted as Rome, so that his name was really Yiram of Rome.
Yiram was a younger contemporary of Saadia Gaon and perhaps even his student. He apparently wrote a commentary on the Books of Chronicles, which is only known from a handful of quotes by the Commentary on Chronicles Attributed to a Student of Saadia Gaon.