(Wagner: Tristan und Isolde). He does not appear in the opera, but is relevant to the action immediately before the start of the opera. He was an Irish knight engaged to Isolde. He went to Cornwall to collect the monies owing to Ireland. He and Tristan fought, Morold was killed and Tristan badly wounded. He was taken to Isolde to be nursed, and initially she did not know who he was. But she saw his sword with a small piece broken off and this matched the piece which had been found in Morold's wound. Determined though she was to avenge Morold's death, she and Tristan fell in love.