XEE4147425: Representation of an opera: Scenography of Act III of “Pierre de Medicis”” based on a libretto by Henry de Saint George, (1799-1875), Emilian Pacini (1810-1898), and music by Josef Poniatowski (1816-1873). Paris, Theatre Imperial de l'Opera, 1860. Engraving in “” Le Monde Illustré”” n°153 of 17 March 1860., French School, (19th century) / Bridgeman Images