Llyfrgell Genedlaethol Cymru = The National Library of Wales
Iolo Morganwg and Taliesin ab Iolo manuscripts and papers
Matthew, Edward, of Llangrallo
Iolo Morganwg, 1747-1826 -- Diaries.
Ffeil
Inscriptions -- Wales -- Glamorgan Dewisiadau chwilio manwl