- NLW Film 1165 (Penrhos VII, 922).
- Ffeil
- [1700x1715].
Rhan oNLW Microfilms,
A cywydd, unbound bifolium, early eighteenth century, entitled 'marwnad neu Goffadwriaeth o Alar am Owen Bold o Langwyfan', by 'J.P.P.' [John Prichard Prys, fl. c. 1704-1721].