Pwyll, Prince of Dyfed Summary

Pwyll offends Arawn king of Arawn by driving his hounds from their quarry. As recompense, Pwyll must take Arawn's place and form as king of Annwn for a year, and defeat Hagfan in single combat. Arawn returns to his kingdom and none notice the difference, except for Arawn's wife, who reveals that Pwyll did not make love to her. Arawn is astonished by Pwyll's honor and grants Pwyll the title "Head of Annwn."

Pwyll sits on a mound. Rhiannon rides past. He sends messengers who gallop in pursuit but cannot catch her. Pwyll calls her and she comes to him. Rhiannon is to be married against her will. Pwyll promises to claim her as his wife.

At the wedding feast, Gwawl asks Pwyll for a boon. Against Rhiannon's advice, Pwyll promises to give Gwawl whatever he asks...