The gods and goddesses in Welsh myths were like the Irish deities, living in Wales, England and Scotland. They inhabited and ruled over the land with mortals. These Welsh deities were powerful rulers of the isle of Britain, establishing mighty dynasties, particularly in Wales and elsewhere.
The deities found here, come mainly from the first four tales of the Mabinogion. Though some of the names appeared in other tales in the Mabinogion, as well as some scattered sources of the Welsh texts.
The horse goddess. Rhiannon was the Welsh equivalent of the Epona (Gallic) and Macha (Irish). Rhiannon was also associated with a Romano-Celtic goddess Rigantona ("Great Goddess").
Rhiannon was the daughter of Hereydd the Old. She married Pwyll, a chieftain of Dyfed.
Rhiannon was unfortunate figure in Welsh myth. Rhiannon had many suitors, among them were Pwyll, chieftain of Dyfed, and Gwawl, the son of Clud. Pwyll won her hand and married her. Gwawl and his father laid a curse upon Pwyll's household. Rhiannon was barren for many years. Pwyll blamed his wife for their inability to have a child, mistreated Rhiannon.
Even though she managed to give birth to a son named Pryderi, she was accused of killing or devouring her infant.