3615939 The Investiture of Bishop Harold as Duke of Franconia, c.1751-52 (oil on canvas) by Tiepolo, Giovanni Battista (Giambattista) (1696-1770); 71.8x51.4 cm; Metropolitan Museum of Art, New York, USA; (add.info.: Emperor Frederick I (c.1121-90) Barbarossa investing Harold of Hochheim, Bishop of Wurzburg, with the dukedom of Franconia in 1168, preparatory study for one of the frescoes in the vault of the Kaisersaal (reception room) of the Residenz (the Prince-Bishop\'s Palace) in Wurzburg. ); Italian, out of copyright.