The king's henchman

[This is] an English language libretto by Edna St. Vincent Millay. The libretto is based on both legend and historical figures documented in the Anglo-Saxon Chronicle including Edgar the Peaceful, Elfrida of Devon, and Dunstan. It tells the story of a love triangle between King Eadgar, his henchman Aethelwold, and Aelfrida, daughter of the Thane of Devon. --Wikipedia.com.