a few more clues probably would have made this a bit more fun, but hey I'm not the Riddler
John 19 Now standing beside Jesus' cross were his mother, his mother's sister, Mary the wife of Clopas, and Mary Magdalene.
Salome is John's mother (apostle), probably the mothers sister since John doesn't refer to himself by name in his gospel, and possibly by extension we can assume he wouldn't name his mother also
Salome is Jesus' aunt
I've always found it interesting that there were 3 women named mary standing there. Possibly related to Beloved Servants guess?