Opera by Gaetano Donizetti (libretto by Salvatore Cammarano, based on Walter Scott's The Bride of Lammermoor), first produced at the Teatro San Carlo, Naples, Italy, on 26 September 1835. In the story, Lucia loves the family enemy Edgardo, but her brother Enrico forces her to marry Arturo. When Edgardo finds out, Lucia goes mad and kills Arturo. Edgardo commits suicide from grief.