Little is known about St. Bibiana, or Viviana, a martyr whose feast day is celebrated on December 2nd. In the fifth century, a church was dedicated in her honor in Rome on the Esquiline hill and her relics were said to be there, but all historical knowledge of her is lost. She has been given a part together with a number of other saints, real or imaginary, in a cycle round the ficticious story of Pimenius or Pigmenius, which is related in turn to the legend of Sts. John and Paul.