Gwent Is Coed

Gwent Is Coed is the lordship of Teirnyon Twryv Vliant and the setting for the household episode that reveals the fate of Pwyll and Rhiannon’s missing son. Although the narrative gives no further description of its landscape or boundaries, it makes the place consequential through a chain of events linking Teirnyon’s estate, an annually disappearing foal, the child he raises, and Rhiannon’s eventual release from penance.

Lordship and Household

Teirnyon Twryv Vliant is introduced as lord of Gwent Is Coed and as an exceptionally good man. The account locates within his household a mare famed as the most beautiful horse in the kingdom. The lordship is thus established through its ruler and estate rather than through a description of its terrain: it is a place of noble household life, with horses and their keepers forming part of its daily order.

The Mare and the May Mystery

On May 1 each year, the mare foals, but no one knows what becomes of the colt. Teirnyon resolves to keep watch rather than accept the repeated loss. During his vigil, the mare gives birth to a large, beautiful colt; a strange presence reaches into the house and takes it, but Teirnyon prevents the colt from being carried away. When he goes outside to follow the disturbance, he finds an infant boy at the open doorway, wrapped in a satin mantle. The unexplained disappearance of the foals and the discovery of the child coincide, binding the mystery of the estate’s horses to the larger mystery of Pwyll and Rhiannon’s lost child.

A Child Raised at Teirnyon’s Court

Teirnyon and his wife take the boy into their care. His satin clothing leads her to judge that he is of gentle lineage, and she arranges for the household to present him as her own child. They have him baptized and name him Gwri Wallt Euryn, because the hair on his head is yellow as gold. He grows with remarkable speed: before the end of his first year he can walk strongly and is larger than an unusually big three-year-old; in his second year he is as large as a six-year-old. Before he is four, he persuades the grooms to let him take horses to water.

The colt saved on the night the child was found remains in Teirnyon’s care. At his wife’s suggestion, Teirnyon arranges for it to be broken in and given to the boy, so that it will be ready for him to ride. The child’s early interest in horses and the pairing of boy and colt extend the significance of the May-night discovery into his upbringing at the Gwent Is Coed court.

Recognition and Return to Narberth

News reaches Teirnyon of Rhiannon’s penance: she has been made to sit beside a horse-block at Narberth and offer to carry visitors into the palace. Knowing Pwyll from his own past service, Teirnyon sees a strong likeness between Pwyll and the boy he has raised. He concludes that the child is Pwyll’s son and that keeping him hidden prolongs the suffering of an innocent mother. His wife agrees that they should return the boy, while also hoping that he may remain their foster-son.

Teirnyon travels to Narberth with two knights, and the boy rides the colt given to him. When Rhiannon offers to carry the visitors as part of her penance, the boy refuses, as does Teirnyon. At the palace, Teirnyon recounts the mare’s foaling, the discovery, and his household’s care for the child. Those present recognize the boy as Pwyll’s son. Rhiannon says that, if the account is true, her trouble is at an end. The child’s original name, Gwri Wallt Euryn, is recalled, but he is named Pryderi, restoring him to his parents and his proper family identity.

Narrative Significance

Gwent Is Coed matters because Teirnyon’s household temporarily shelters the child whose disappearance has led to Rhiannon’s punishment. The place’s annual May mystery supplies the route to the truth: the foal’s disappearance draws Teirnyon into a watch that ends with the boy’s discovery, while the boy’s rapid growth and resemblance to Pwyll prompt his return. The lordship is therefore not merely a setting for an unusual birth; it is the point from which the false account of Rhiannon’s crime is undone and the family is reunited.