The Welsh had a pantheon of gods and goddesses before the coming of the Romans.  With the defeat of the druids and the extermination of their sites on Anglesey, the druid religion in Wales went into decline–and perhaps that is the reason there are relatively few Welsh gods and goddesses compared to the Irish, whose religion flourished during the Dark Ages and also developed a unique form of Christianity alongside it. Within the belief system, faeries, or Tylwyth Teg, the modern designation, had a role, divisible into five classes:  the Ellyllon, or elves, the Coblynau, or mine fairies, the Bwbachod, or household fairies, the Gwragedd Annwn, or fairies of the lakes and streams; and the Gwyllion, or mountain fairies.  http://www.sacred-texts.com/neu/celt/wfl/wfl02.htm Ellyllon:  “The Ellyllon are the pigmy elves who haunt the groves and valleys, and correspond pretty closely with the English elves. Read more…