Live video (in Spanish) on "The Birth of the Sun and the Triumph of Bacchus", a sketch by Corrado Giaquinto for the allegory of the birth of the Sun, represented by Apollo, which he would later paint as a fresco in 1761 for the Hall of Columns of the Royal Palace of Madrid, during the early years of the reign of Charles III.

From Room 86 of the Museo del Prado.