- NLW MS 8497B
Part of Penybontfawr Manuscripts,
A collection of 'cywyddau' and 'englynion' mainly in the early hand of Thomas Wiliems, otherwise called Thomas ap William, of Trefriw, with a few items in his later hand. The poets represented are Iorwerth Beli, G[o]ronwy Gyrio...
Wiliems, Thomas, 1545 or 1546-1622?