The Mass at Bolsena

Artist: Raphael
Location: Apostolic Palace, Vatican
Medium: Fresco
Date: 1512

A Bohemian priest who doubted the doctrine of transubstantiation was celebrating mass at Bolsena, when the bread began to bleed in the shape of a cross. Below kneel the officers of the Swiss troops. Pope Julius II appears kneeling in prayer, witnessing the miracle.