Proffwydoliaethau Taliesin a Myrddin,
- Peniarth MS 137 [RESTRICTED ACCESS].
- Ffeil
- [16 cent.].
A manuscript in several 16th century hands, including that of John ap Rhys, comprising prophecies attributed to Merlin, Taliesin and others; poetry of Tudur Aled; pedigrees; the Divisions of the Lordship of Powys; and the Blessed Oil.
Various dates occur in the manuscript, for example 1541(p. 183) and 1588 (p. 219); other leaves were written temps Henry VIII and Elizabeth I.