Barddoniaeth Dafydd Nanmor a Dafydd ap Gwilym
Reference: Peniarth MS 52
Cywyddau of Dafydd ap Gwilym and Dafydd Nanmor by a single scribe and dating from the second half of the 15th century. A detailed list of the manuscript's contents may be found in J. Gwenogvryn Evans, Report on Manuscripts in the Welsh Language, vol. I (London, 1898-1905), 402-403.