Italian baroque composer Antonio Vivaldi composed no less than four oratorios, of which only 'Juditha triumphans' (1716) has survived. The work is based on the Book of Judith from the Old Testament, and features a Latin libretto by Giacomo Cassetti. Cassetti’s libretto deals with the siege of the city Bethulia by the Assyrian army, led by general Holofernes. To implore Holofernes' mercy, the Je...