Mary Lwyd may mean Pale Mary, or Wan Mary, or Hoary Mary, but the presumption is that it means in this case Blessed Mary, and that the custom is of papal origin. There is, however, a tradition which links the custom with enchantment, in connection with a warlike princess, reputed to have flourished in Gwent and Morganwg in the early ages, and who is to be seen to this day, mounted on her steed, on a rock in Rhymney Dingle.[114]