 The Archbishop of Freiburg holds the title of metropolitan and the German headquarters of the Caritas International is in Freiburg.Saint George (the flag of Freiburg has the cross of George), Lambert of Maastricht and the catacomb saint, Alexander, are the patron saints of Freiburg.Many works of art depicting these saints are in the Freiburg Minster, on the Minster square, just as in the museums and archives of the city, including some by Hans Baldung Grien, Hans Holbein the Younger and Gregorius Sickinger.