Looking at the phrasing, it looks to be three ladies who are all named, rather than four women who are only named three times. It is worth noting that the passage does not include "Jesus' mother, and his mother's sister, and Mary the wife of Cleophas, and Mary Magdalene." The names of these women are: Mary, the mother of Jesus; and Joanna, the wife of Chuza, a senior officer under Herod Antipas who served as one of Jesus' followers. They are all mentioned together in Luke 8:1-3, which says that "Herod's tax collector called Barabbas was released in order to take his place among the rebels. But many people instead chose Jesus, whom the governor had put to death." Barabbas had been imprisoned for murder, but during his imprisonment he became a revolutionary and led a group of men in rebellion against Rome. Jesus was crucified between Barabbas and two other men. After Jesus' death, the crowd decided to release Barabbas instead of Jesus so they could go back to killing each other over who was the most important person in Jerusalem - the prophet John the Baptist or the man who came after him, Jesus Christ. So, besides being the mother of Jesus, Mary also followed him during his time on earth. She was one of the few people who believed in him even before he performed any miracles.