A negative photostat facsimile of Welsh MS. 1 in the John Rylands Library, Manchester, being an incomplete volume of Welsh pedigrees, largely of Gwynedd, Powys, and the March, written in the paper, as distinct from the parchment, hand of Gutun Owain (fl. c. 1460-c. 1498), poet, scribe, and genealogist, of Dudleston in the lordship of Oswestry, together with some seventeenth century additions. Much of the contents of the volume corresponds to Peniarth MS. 129, which until recently had also been attributed to Gutun Owain. Written in the margin of f. 10, in the same hand as the text itself, is the following inscription:- 'oed krist eleni Mcccclxxxxvii o vlynyddoedd 1497'.