in Arthurian legend, one of the knights of the Round Table
who sought for the Holy Grail
. He is Arthur's nephew, and is the hero of the medieval poem Sir Gawain and the Green Knight
. Opera in 2 acts by Birtwistle
to lib. by David Harsent after Sir Gawain and the Green Knight
(anon., 14th cent.). Comp. 1987–90, rev. 1994. Prod. London (CG) 1991.