- NLW MS 552B
- Ffeil
- [17 cent.]
Rhan oCelynog manuscripts
Transcripts of cywyddau and englynion by Sion Tudur, Edward ap Raff, Wiliam Cynwal and others; an abbreviated version of Hystoria Lucidar (cf. Lanstephan MS. 117 and Mostyn MS. 144); lives of Saints Margaret and Catherine; Trioedd Taliesin; and an index of contents by Lewis Morris.