Donald Attwater: Penguin Dictionary of Saints, 1965, S. 84 f.: „The legend of the St. Christine venerated at Lake Bolsena in Latium is simply that of St Christine of Tyre, imported from the East and adapted to local conditions Both legends are narratives of ordeals endured and of miraculous happenings, without historical value. There are remains of an early Christian cemetery at Bolsena, but the evidence for its being the burial place of a martyred Christine is not satisfactory“ (Digitalisat).