Welsh manuscript collection of religious texts, mainly in the hand of Hywel Fychan. Other parts of the original manuscript are are in Peniarth MS 12 and Cardiff MS 3.242.
- Hywel Fychan ap Hywel Goch
- c. 1250
- s. xiv1
- Anonymous [hand in Harl. 4353, Cot. Cleo. A xiv and Book of Taliesin]
- s. xivmed
- c. 1350
Welsh paper manuscript (434 pp.) written by Syr Huw Pennant around or by 1514.
- Huw Pennant [Syr]
Manuscript known best as the Book of Aneirin (Llyfr Aneirin'), containing the heroic poem Y Gododdin and a number of gorchanau.
- s. xiii2
- s. xiv-xv
- Anonymous [scribe I of Llyfr Coch Hergest], Hywel Fychan ap Hywel Goch, Anonymous [scribe of Llyfr Teg]
- Anonymous [anchorite of Llandewi Brefi]