A composite manuscript lettered 'BARDDONIAETH &c.' on the spine. The volume, which contains 'englynion', 'carolau' and pedigrees, is written for the most part (ff. 1-52 verso and 75 verso-101 verso) by Wiliam Dafydd Llywelyn of Llangynidr (c. 1520-1606) (cf. NLW MS 15542B). Another hand is responsible for ff. 53- 75, but Wiliam Dafydd Llywelyn appears to have annotated this middle section. Folio 6 verso carries an eighteenth century list of payments, and folio 7 verso is blank. The contents are: ff. 1-2 verso, part of the story of 'Trystan ac Esyllt' (cf. 'englynion' 9 to 28 in Ifor Williams, 'Trystan ac Esyllt', The Bulletin of the Board of Celtic Studies V, pp. 118-21); ff- 3-5v, a religious carol beginning 'hanpych well y gaua[. . .] . . .', with each stanza ending 'ora tu pro nobys'; f. 6 recto-verso, 'englynion': one by Huw Arwestl beginning 'medru tewi weithie yes medria[d] [sic] gydwedd . . .', as well as three written in praise of the song-thrush by Dauydd llwyd Mathe, 1581, Dafudd Benwyn, and Wm Mydleton; f. 8 recto-verso, a short extract of religious prose beginning 'Jessv grist yn keidwad y godoedd o feirw y fyw . . .'; f. 8 verso, an 'englyn' 'pen ddarffo rifo y ryfic, ymgais . . .'; ff. 9-46, 'Dyma englyn[ion ] . . .', a series of 226 'englynion' based on proverbs and epigrams, the first beginning '[D]auparth gwaith ganwaith rag wynebdychryn . . .', 'per Tho[mas] ap Hughe de Ewyas', the epigram or proverb is rubricated oftener than not; ff. 46 verso-48, '[ ] englynion y datts', beginning 'dau .cc. a v. mil digwyn / ont dayfis . . .'; f. 48 recto-verso, five 'englynion' beginning 'Un sir ar bymtheg medd sain / lliwgalch . . .'; ff. 49-51, a series of nineteen 'englynion' recording the accession dates of the kings and queens of England between Henry II and Elizabeth I, beginning 'pymp deg pedwar teg myn tain / ywch ka[nt] . . .'; ff. 51 verso-52, eight stanzas beginning 'hawdd o beth y[w] nabod cwilsen . . .'; f. 52, two 'englynion' beginning 'mi a gaf y geisaf fal negeswr / dof . . .'; f. 52, a 'hir a thoddaid' beginning 'Rag Kythrel anfwin . . .'; f. 53, the six last lines of a carol ending 'am y fordd [sic] y gorfydd myned'; ff- 53-73, a long carol based on biblical and historical events, entitled 'Iacob 4 Glanhewch ych dwylaw bechadurieit a phurwch ych calonaw [sic] dauddyblug feddwl', beginning ' fal iroeddwn i n effrv . . .'; f. 73 verso, five stanzas beginning 'Dues wyn diwad . . .', with the following note accompanying the text 'ymofynnrvch am ddiwedd hyn yma yn well o rhyw goppi arall oscat vidd nid oedd ef yn cesio oddli ne ni fedrei Amendiwch y dywaetha fal hyn i odli os mwnwch'; f. 74 recto-verso, lines in the 'cywydd' metre beginning 'Rhown moliant gan tant bob didd . . .'; f. 74 verso, an 'englyn' based on Mat. [xxiv, 35.], beginning 'Nef a daear wfir o wall / a dderfydd . . .'; f. 75, an 'englyn' by Simwnt Vychan beginning 'Pumptheccant gwyddant y gost / a decwyth . . .'; f 75, two 'englynion' by Da[vid] Johns beginning 'Mil a hanner noder yn wiwdec cynnwys . . .'; f. 75 verso, three 'englynion' beginning 'pwy ywr mares garw a gyrydd myrain . . .'; ff. 76-80, a description of arms of Welsh nobles entitled 'Dysgrifiad arfey y bryttan[ied] o vryttys hyd heddiw'; ff. 80 verso- 82, 'Disgliriad [sic] pob gwlad yn neilltyedic o waith Einion ap gwawdrydd mewn englynion', beginning 'Gnawd yngwynedd fokyssedd eirey . . .', [ usually attributed to Aneurin Gwawdrydd]; f. 82 recto-verso, seven 'englynion' of a prophetic nature beginning 'pan welych yr ych mawr ychod / antyrys . . .'; f. 83, a short English prophecy beginning 'Take hyd of Seuen . . .'; f. 83, a list of characteristics attributed to twelve areas of Wales and the Marches in which they surpass others, beginning 'Pen Bonedd Gwynedd'; and ff. 83 verso-101 verso, a list of pedigrees of noble Welsh families entitled 'llyma Betigriw y bryttanied' beginning 'llywelyn ab Gryffydd ap ll ap lorwerth drwyndwn ap Owain gwynedd . . .', continuing f. 84 'llyma Iach bryttys', f. 85 'Rodri Mawr ap merfyn frych . . .', f. 85 verso 'Plant Owein Gwynedd', f. 93 'llyma Wahelyth Deheybarth', f. 94 'kedewen', f. 99 'Dyma arfav Rys ab Morys goch . . .', f. 100 verso 'llyma Iach bleddyn ab kynfyn;, f. 101 'llyma bedwar post prydain', f. 101 'llyma Iach yr arglwydd Rys', and f. 101 verso 'llyma Iach Gryffydd ab kynan' (incomplete).