For 10 points, name this Irish playwright of Lady Windermere's Fan and The Importance of Being Ernest, whose only novel was The Picture of Dorian Gray.
In one drama by this man, the title character finds a secret bank book after a tip from the Duchess of Berwick; that book shows that her husband has been giving money to another woman. That work by this man ends when the title object is returned by Mrs. Erlynne to her daughter, Margaret. This man also wrote a work in which it is revealed that Miss (*) Prism left a handbag with a baby in a train station. For 10 points, name this Irish playwright of Lady Windermere's Fan and The Importance of Being Ernest, whose only novel was The Picture of Dorian Gray.
In one drama by this man, the title character finds a secret bank book after a tip from the Duchess of Berwick; that book shows that her husband has been giving money to another woman.
Oscar {Wilde}