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(Welsh) [O-loon] Also Olwyn. A daughter of the king of the Giants, Ysbadadden. Her name means "the golden wheel", which makes some see her as an opposing force to Arianrhod of "the silver wheel". Her other nickname was "Lady of the White Tracks" because wherever she walked the trefoil plants commonly called shamrocks would pop up. This indicated that she may have been a Triple Goddess unto herself with several other associations long lost to us.

The hero Culhwch was a suitor of Olwen's who went on a mythic journey to find her after her father, who knew he would die if their marriage took place, hid her. In this part of the myth she is the May Queen, a partner of the new sacrificial God who takes the place of the old one

Olwen also had adventures in faeryland after she was captured by horse riding faeries. She was rescued by her father after a year and a day of captivity. (May Queens are often linked to the faery kingdom.)

Citaat:

(Pan-Celtic) [ESS-trah or Y'OSE-tree] Eostre is an Anglo-Saxon Goddess, the one for whom the Ostara Sabbat is named. When the Saxons invaded Britain, they brought this vigorous Goddess with them and she was eventually adopted into the Celtic pantheon.

She is seen as spring personified, a Goddess of rebirth, new beginnings, and fertility. The name for animal menstruation, "estrus", meaning fertile period, is derived from her name, and as such, she is also a Goddess of animal reproduction. The Christian holiday of Easter is also her namesake, and the concept of the Easter Bunny and Easter Eggs come from her legends.
See also Ostara.