XJF437448 The Mass of St. Gregory, 1511 (woodcut) by D羹rer or Duerer, Albrecht (1471-1528); Private Collection; (add.info.: Christ appears as the Man of Sorrows, with all the instruments of the Passion, a column, a scourge, a hammer and the Cross with a ladder leaning against it; a representation of the real presence of Christ during the eucharist; Pope Gregory I (c.540-604) known as Gregory the Great;); German, out of copyright.