Lohengrin
Hamburgische Staatsoper, Hamburg
Elsa of Brabant is suspected of having killed her younger brother Gottfried in the forest. When King Henry the Fowler asks Elsa to defend herself, she pleads for an imaginary knight to come to her aid. Suddenly, Lohengrin, the Knight of the Swan, appears. He promises to fight for Elsa, but makes her promise beforehand never to question him about his identity or provenance.