James the Less is identified with James the brother of Jesus. Jerome concluded that James "the brother of the Lord" is the same as James the Less. To explain this, Jerome first tells that James the Less must be identified with James, the son of Alphaeus. After that, James the Less being the same as James, the son of Alphaeus, Jerome describes in his work called "De Viris Illustribus" that James "the brother of the Lord" is the same as James, son of Alphaeus: