Smith's Bible Dictionary
Ma'ry. (a tear). Mary of Cle'ophas. So in Authorized Version, but accurately "of Clopas," that is, the wife of Clopas (or Alphaeus). She is brought before us for the first time on the day of the crucifixion, standing by the cross. John 19:25.
In the evening of the same day, we find her sitting desolate at the tomb with Mary Magdalene, Matthew 27:61; Mark 15:47, and at the dawn of Easter morning, she was again there with sweet spices, which she had prepared on the Friday night, Matthew 28:1; Mark 16:1; Luke 23:56, and was one of those who had "a vision of angels, which said that he was alive." Luke 24:23.
She had four sons and at least three daughters. The names of the daughters are unknown to us; those of the sons are, James, Joses, Jude and Simon, two of whom became enrolled among the twelve apostles, see James the Less, and a third, see Simon, may have succeeded his brother in charge of the church of Jerusalem. By many, she is thought to have been the sister of the Virgin Mary.
2. A Roman Christian who is greeted by St. Paul in his Epistle to the Romans, Romans 16:6, as having toiled hard for him.
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Smith, William, Dr. Entry for 'Mary'. Smith's Bible Dictionary. https://www.studylight.org/​dictionaries/​eng/​sbd/​m/mary.html. 1901.