 The event was commemorated in the 19th century by a chapel; and the so-called "Peter's pine" was shown to tourists down to the 20th century.The story, however, has been viewed with scepticism by some historians, pointing out that the German chronicler Jacob von Stählin is the only source for the story, and it seems unlikely that no one else would have documented such an act of heroism.This, plus the interval of time between these actions and Peter's death seems to preclude any direct link.