Arawn

In the earliest literary attestations (the First Branch of the Mabinogi) Arawn appears as the named king of Annwn, the Welsh Otherworld. The surviving narrative depicts him as an Otherworld sovereign who enters into a negotiated exchange with the human lord Pwyll: to avenge a wrong and settle a feud Arawn requests that Pwyll take his place for a year and a day and defeat his rival Hafgan. Later medieval and folkloric developments sometimes transfer the rulership of Annwn to other figures (notably Gwyn ap Nudd) and Christianized accounts reinterpret aspects of Annwn, but Arawn’s role as Annwn’s king is preserved in the Mabinogi material cited in the sources.

The supplied sources do not give a sustained physical description of Arawn himself. Narrative detail instead emphasizes animals and items associated with his court: in the Pwyll episode Pwyll discovers white hounds with red ears feeding on a stag, and later material associates Annwn with supernatural hounds (Cŵn Annwn), a lapwing, and a white roebuck in various retellings. Arawn’s bodily appearance is not described in the provided summaries.

The primary depiction in the First Branch shows Arawn exercising sovereign agency over Annwn and negotiating a structured exchange with a human (the year-and-a-day swap with Pwyll), implying authoritative control over the terms of that interchange. He is party to a military rivalry (with Hafgan) which he cannot settle without Pwyll’s aid, and he transfers or bestows otherworldly animals and gifts (for example, the pigs given to Pryderi) that entail enduring obligations. Later folklore links his realm with the Cŵn Annwn—supernatural hounds that in Christianized accounts were said to hunt wandering or damned souls—but the sources note Arawn himself is not always invoked in those later hound traditions.