File Peniarth MS 161 [RESTRICTED ACCESS]. - Rheolau cerdd dafod,

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Rheolau cerdd dafod,


  • [16-17 cent.] (Creation)

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Extent and medium

46 ff. (ff. i-iv + pp. 1-84) ; 199 x 146 to 150 mm. Formerly ‘sewn in limp vellum’ [RMWL]. Rebound at NLW. A hole in the lower part of pp. 57-84 increases in size as the manuscript progresses; by p. 84 most of the lower half of pages are missing. Folio iv is a vellum wrapper of [19 cent.].

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Archival history

On f. iv are notes on the manuscript by W.W.E. Wynne.

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Content and structure area

Scope and content

A composite manuscript probably made up from unbound fragments, on different paper stocks. Comprising:
(i) pp. 1-2: A leaf containing on p. 1 a grammar in the hand of Siôn Cain.
(ii) pp. 3-56: A compilation on bardic grammar, evidently a personal draft, in the hand of Rhys Cain, largely corresponding to the grammars of Gutun Owain and Simwnt Fychan [Gramadegau’r Penceirddiaid, eds G.J. Williams and E.J. Jones (Caerdydd, 1934), p. lvi]; the section ‘Y beiau gwaharddedig’ (pp. 33-40) is printed from here in Gramadegau’r Penceirddiaid, pp. 194-6.
(iii) pp. 57-84: All in the later hand of John Davies of Mallwyd [not before 1617, since there are references to his collection of Lewys Glyn Cothi, London, British Library, Additional MS 14871]. Includes: quotations from the Cywyddwyr, classified to exemplify beiau and questionable cases (‘edrych y rhain’) (pp. 57-68); quotations from the Cywyddwyr exemplifying words, alphabetically arranged (pp. 69-77); further quotations (pp. 80-1); notes, with folio references, to his collections of poetry (p. 84). All leaves of this part have suffered damage by rodents.

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Conditions governing access

Access to the original manuscript by authorised permission only. Readers are directed to use surrogate copies.

Conditions governing reproduction

Usual copyright laws apply.

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Finding aids

A detailed list of the manuscript's contents may be found in J. Gwenogvryn Evans, Report on Manuscripts in the Welsh Language, vol. I (London, 1898-1905), 947-948.

Description based on Daniel Huws, A Repertory of Manuscripts and Scribes c.800-c.1800 (Aberystwyth, 2022), I, 403.

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Existence and location of originals

Existence and location of copies

Digital version available (November 2023)

Available on microfilm at the Library.

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Formerly Hengwrt MS 267.


Preferred citation: Peniarth MS 161 [RESTRICTED ACCESS].


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Llyfrgell Genedlaethol Cymru = The National Library of Wales

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Dates of creation revision deletion

October 2023.




Archivist's note

Description revised by Maredudd ap Huw.

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  • Microform: $h - MEICRO PENIARTH MS 161.
  • Text: Peniarth MS 161 [RESTRICTED ACCESS]; $q - A hole at the bottom of pp. 57-84 increases in size as the manuscript progresses; by p. 84 most of the bottom half of the page is missing.; $z - Access to the original manuscript by authorised permission only. Readers are directed to use surrogate copies..