Is-Coed, and his wife. “I should be delivered of my care if that were true,” says Rhiannon. The boy takes the name Pryderi (Care).

In the story of Culhwch and Olwen, Culhwch has to obtain Rhiannon’s birds to give entertainment to the giant Yspaddaden in order to obtain Olwen’s hand.

Manawydan, son of Llyr, becomes Rhiannon’s second husband after the death of Pwyll. A curse falls on Dyfed and she is abducted by Llwyd, the friend of her former suitor Gwawl. Pryderi is also captured, but they are rescued by Manawydan.

Rhinnon Rhin Branawd

[W] The possessor of a magic bottle needed in the story of Culhwch and Olwen.

Rhitta

[W] A giant who is king of Gwynedd and who takes a hand in the argument between Nynniaw and Peibaw.

Rhonabwy

[W] A warrior under Madawc, son of Maredudd. Madawc’s brother, Iorwerth, rose against him. Rhonabwy takes Madawc’s troops to quell the rebellion. He goes to rest one night in a hut and lies on a yellow calfskin by the fire. Here he sleeps for three nights and has a wonderful dream in which he sees Arthur and his warriors as they prepare for the battle at Mount Badon. The chief incident narrated is that of the game of chess between Arthur and Owain.

Rhun

[W] He was sent by Arthur to seduce Elphin’s wife.

Riada

[I] The ancestor of the Dál Riada (of both Ulster and Alba). In the fourth century a.d. there was a famine in Munster and its ruler, Conaire, allowed his son, Riada, to go north with some of the people. He settled first in Co. Antrim and then crossed the sea into Alba (Scotland), where he formed a second kingdom of Dál Riada on Airer Ghàidheal (Argyll), the seaboard of the Gael.

Ríangabur

[I] Father of the two most famous charioteers of Ulster: Laeg, charioteer to Cúchulainn, and Id, charioteer to Conall Cearnach.

Ríastarthae

[I] The name given to Cúchulainn’s battle fury.

Roc

[I] The steward of the love god Aonghus Óg. Roc had a son by the wife of Donn, father of Diarmuid Ua Duibhne. Donn killed Roc’s child by crushing it. Roc smote his child with a magic wand and revived it as a huge boar without ears or tail. Roc charged this boar to encompass the death of Donn’s own son, Diarmuid. It went off to Ben Bulben to await its destiny. See Diarmuid and Gráinne.