Pengwern. Humorous and Fallacious folk etymology.....PingWorm...A Welsh Internet Spammer.
The Mabinogion, Collection of 12 and 13 century Welsh Poetry.
Ceridwen, (KeRIDwin) Welsh enchantress and Mother of Taliessin. (A very strange tale!)
A modern work; "Taliessin through Logres, The Region of the Summer Stars, Arthurian Torso" by Charles Williams.
(Off to do yardwork! Have a good day wandering around the Halls of the Past!)