Pwyll Pendefig Dyfed

In Guest's 1877 Mabinogion, Pwyll follows his hounds through Glyn Cuch and loses sight of his companions. Another pack brings down a stag. Pwyll drives those hounds away and sets his own upon the kill. Arawn confronts him over this discourtesy, and Pwyll offers to make amends and earn Arawn's friendship. Arawn names his enemy, Hafgan, and proposes an exchange: for a year, the two kings will take each other's appearance and rule each other's lands. Pwyll will meet Hafgan at the Ford in Arawn's form and strike once. Arawn warns him not to strike a second time, even if Hafgan begs.

Pwyll spends the year in Annwvyn, hunting and feasting with the court, while Arawn rules in Dyved. At the Ford, Pwyll's blow knocks Hafgan from his horse and leaves him dying. Hafgan asks for another blow; Pwyll refuses. The nobles take the man in Arawn's appearance as their king, and by the next day both kingdoms are under his rule. He returns to Glyn Cuch, where Arawn awaits him. They take back their own forms. Pwyll tells the nobles in Dyved who had ruled in his place, and they praise the year's government. He acknowledges Arawn's part, and the two kings renew their friendship with gifts.