GIA938516 Wolfgang Amadeus Mozart and Franz Joseph Haydn (coloured engraving) by Rigaud, John Francis (1742-1810); Private Collection; (add.info.: Wolfgang Amadeus Mozart (27 January 1756 ??5 December 1791), baptised as Johannes Chrysostomus Wolfgangus Theophilus Mozart was a prolific and influential composer of the Classical era.Franz Joseph Haydn (31 March 1732 ??31 May 1809), known as Joseph Haydn, was an Austrian composer, one of the most prolific and prominent of the Classical period.); 穢 Giancarlo Costa; French, out of copyright.