- NLW MSS 10341-3, 19098-9, 19899
- Is-fonds
- [17 cent.]-1900
Rhan oIolo Morganwg and Taliesin ab Iolo manuscripts and papers
Miscellaneous manuscripts comprising volumes of Iolo Morganwg's hymns, [1810x1830]; commonplace books, [17 cent.]-[early 19 cent.], collected by Iolo Morganwg and Taliesin ab Iolo; and miscellaneous literary, personal and family papers, [early 19 cent.]-1900.