Learn more about Salome from the Easton’s Bible Dictionary

Perfect. (1.) The wife of Zebedee and mother of James and John (Mat. 27:56), and probably the sister of Mary, the mother of our Lord (John 19:25). She sought for her sons places of honour in Christ's kingdom (Matt. 20:20, 21; comp. 19:28). She witnessed the crucifixion (Mark 15:40), and was present with the other women at the sepulchre (Matt. 27:56).
(2.) "The daughter of Herodias," not named in the New Testament. On the occasion of the birthday festival held by Herod Antipas, who had married her mother Herodias, in the fortress of Machaerus, she "came in and danced, and pleased Herod" (Mark 6:14-29). John the Baptist, at that time a prisoner in the dungeons underneath the castle, was at her request beheaded by order of Herod, and his head given to the damsel in a charger, "and the damsel gave it to her mother," whose revengeful spirit was thus gratified. "A luxurious feast of the period" (says Farrar, Life of Christ) "was not regarded as complete unless it closed with some gross pantomimic representation; and doubtless Herod had adopted the evil fashion of his day. But he had not anticipated for his guests the rare luxury of seeing a princess, his own niece, a grand-daughter of Herod the Great and of Mariamne, a descendant, therefore, of Simon the high priest and the great line of Maccabean princes, a princess who afterwards became the wife of a tetrarch [Philip, tetrarch of Trachonitis] and the mother of a king, honouring them by degrading herself into a scenic dancer."