Jerome

The Mary which in Mark and Matthew is called the mother of James and Joses, was the wife of Alpheus, and sister of Mary the mother of our Lord: which Mary John here designates of Cleophas, either from her father, or family, or for some other reason. She need not be thought a different person, because she is called in one place Mary the mother of James the less, and here Mary of Cleophas, for it is customary in Scripture to give different names to the same person.