Hero challenged by the Green Knight

• Arthur's nephew
• Nephew of Arthur
• One of Arthur's knights
• "Sir ___ and the Green Knight"
• (Arthurian legend) a nephew of Arthur and one of the knights of the Round Table
• Knight of the Round Table
• King Arthur's nephew
• Round Table name

Wikipedia Word definitions in Wikipedia
Gawain is an opera with music by Harrison Birtwistle to a libretto by David Harsent . The story is based on the Middle English romance Sir Gawain and the Green Knight . The opera was a commission from the Royal Opera House , London, where it was first performed ...