FTP, name this play in which the title character Beatrice dies poisoning herself, a work of Oscar Wilde.
One character in this play addresses the problem of stagnant water by recommending that the citizens drink wine because "water is quite unwholesome" and responds to complaints of bread made of chaff by stating "very good food too, I give it to my horses".  When it is suggested that one character in this play was tempted by a devil, that character responds "We are each our own devil, and we make this world our hell".  Another character in this work decides to leave a dagger and letter on the breast of a sleeping victim whom he refuses to kill despite the urgings of Moranzone.  After murdering her husband Simone, the protagonist frames her lover Guido Ferranti for the crime.  FTP, name this play in which the title character Beatrice dies poisoning herself, a work of Oscar Wilde.
One character in this play addresses the problem of stagnant water by recommending that the citizens drink wine because "water is quite unwholesome" and responds to complaints of bread made of chaff by stating "very good food too, I give it to my horses".  
The Duchess of Padua