Question: Which opera was written by Wolfgang Amadeus Mozart, Martha or Idomeneo?
Sentence (from "Martha (opera)"): Martha, oder Der Markt zu Richmond ("Martha, or The Market at Richmond") is a "romantic comic" opera in four acts by Friedrich von Flotow set to a German libretto by Friedrich Wilhelm Riese and based on a story by Jules-Henri Vernoy de Saint-Georges.
Relevant evidence: Yes