According to the gospel of John, she was the sister of Lazarus and witnessed her brother's resurrection.
According to one legend, she left Palestine after Jesus's death, around 48, and went to Provence with her sister Mary (potentially Mary Magdalene) and her brother Lazarus. Martha first settled in Avignon (now in France), then went to Tarascon, where a monster, the Tarasque, was a constant threat to the population. Martha managed to tame the monster and eventually died in Tarascon, where she was buried.