Medieval England exerted a strong influence on Johann Simon Mayr, especially during his final proto-Romantic period. Alfredo il Grande was to be one of his last operas, with a narrative that takes us to a land under threat of war with the Vikings. Escaping capture, Alfred the Great travels incognito, ultimately defeating the enemy and rescuing his beloved Alsvita. With its grandiose choruses and sensuous melodies, this opera was conceived on a monumental scale and proved both impressive at its premiere and influential on the next generation of bel canto composers, making a substantial contribution to the development of the melodramma romantico.