- NLW MS 8361C.
- Ffeil
- [1901x1920].
Rhan oNeuadd Wen Manuscripts,
Typewritten copies of 'Ymddiddan yr Enaid a'r Corff', 'Y Tri Brenin o Gwlen', and 'cywyddau' by Owain Gwynedd, Siôn Powel 'y Gwehydd o Ryd Eirin', and Gruffudd Hiraethog, taken from 'Y Piser Hir'.