Llyfr Du Caerfyrddin
The Black Book of Carmarthen
Peniarth MS 1
Currently housed at the National Library in Wales, the Black Book of Carmarthen (Peniarth MS 1) is a manuscript dating to the middle of the thirteenth century. It is believed to have been the work of a single scribe at the Priory of St. John in Carmarthen.
Much of the material is either concerned with the figures of the Dark Ages--Myrddin, Arthur, Urien, and Taliesin all appear here--there are also a number of religious poems. Also, there are a few poems by Cynddelw, bard of Madog ap Maredudd (ca. 1160). Skene does not translate his poems, so I am currently in the process of tracking down usable translations of the Cynddelw poems.