"Arianrhod ("silver wheel", thus, the moon), is one of the descendants of Don. She had two brothers, Gilfaethwy and Gwydion the sister of Math ap Mathonwy, whose quality was that he required a virgin's lap to place his feet in, unless he was at war. When this virgin was raped, Math asked for a replacement, and Arianrhod volunteered. But when she stepped over his rod, she immediately gave birth to two children: a young boy and a blob. (This is likely because the word morwyn may mean either 'virgin' or 'free young woman', but it also indicates her divine status.)

The boychild was named Dylan; he was a sea-being who returned to the waves. The blob was snatched up by Arianrhod's brother Gwydion, who hid it in a chest until it grew into a baby. Arainrhod imposed three geases upon this boy: he would have no name unless she named him, he would bear no arms unless she armed him, and he would have no human woman to wife. Thus, Arianrhod denied him the three essential passages to manhood. Nevertheless, Gwydion raised the nameless boy, and one day Arianrhod spied a young boy killing a wren with a single flung stone. She called out that he was a bright lion with a sure hand, and thus he took that name: Llew Llaw Gyffes. Later, Gwydion faked an alarm, and tricked her into arming the boy."
--by Karen Davis

"('Silver Wheel') Major Welsh Goddess. A star goddess. Her palace was called Caer Arianrhod (Aurora Borealis), Goddess of time and karma. Mother aspect of the Triple Goddess in Wales. Goddess of beauty, the Moon, fertility and reincarnation. Mother of Llew Llau Gyffes by her brother Gwydion. Her consort Nwyvre ('Sky, Space, Firmament') has survived in name only. Caer Arianrhod is the circumpolar stars, to which souls withdraw between incarnations, she is thus a Goddess of reincarnation. Honoured at the Full Moon."
--by Troth

Image by Norma Peters

{Cail's note: my favorite of the Welsh pantheon *smile*}