Maria Stuarda ( Mary Stuart ) is a tragic opera , ( tragedia lirica ) , in two acts , by Gaetano Donizetti , to a libretto by Giuseppe Bardari , based on Andrea Maffei 's translation of Friedrich Schiller 's 1800 play Maria Stuart .
Maria Stuarda is an Italian opera in three acts by Gaetano Donizetti , libretto by Giuseppe Bardari , after Friedrich Schiller 's play Maria Stuart .