Ffeil Llanstephan MS 123 [RESTRICTED ACCESS]. - Poetry,

A manuscript written after 1643 (see p. 199) containing poetry, the poets cited including Iolo Goch, Ieuan Tew Brydydd, Wiliam Cynwal, Lewis Menai and Siôn and Rhisiart Phylip. An index, with the poets' names arranged alphabetically, has been added at pp. 641-651 by Richard Morris 'i Wm: Jones F.R.S. yn llundain 1746'.
The original or originals of this manuscript were apparently often defective as many lacunae and imperfect lines occur: the beginning of the poem at p. 139 is wanting and the rest is very imperfect; the beginning of the poem at p. 181 is wanting as that which is noted as the first line here is in fact the 8th or 10th line; 'A chanoes ac ychwaneg a ranno dvw ir wen dêg' is added in a later hand on p. 316; an addition in the margin at p. 435 ends the poem with 'do'n ifanc ai i nefoedd'.