Which Welsh goddess is associated with the stars and mother of Lleu?

Which Welsh goddess is associated with the stars and mother of Lleu? Arianrhod is associated with the stars and is the mother of Lleu.

Arianrhod is a prominent figure in the Fourth Branch of the Mabinogi, where she is presented as the daughter of Dôn and the sister of Gwydion. Welsh mythological tradition associates her with the sky and stars, although her surviving literary portrayal is more complex than a simple goddess of astronomy.

In the story, Arianrhod gives birth to two sons through magical circumstances: Dylan ail Don and Lleu Llaw Gyffes. Lleu’s identity and destiny become entangled with a series of enchantments involving his mother, his uncle Gwydion, and the king Math ap Mathonwy.

Arianrhod is easily confused with Rhiannon, another major Welsh female figure, but their roles differ. Rhiannon is the mother of Pryderi and is strongly linked with horses and sovereignty, while Arianrhod belongs especially to the mythic family and magical events of the Fourth Branch.