A manuscript containing Brut y Tywysogion, with which some such text as that of the Saxon Chronicle has, to some extent, been interwoven in the earlier part.

A volume containing texts of (a) the fuller version of 'Ystoria Dared' (pp. 1-40), translated by Peter Roberts in The chronicle of the Kings of Britain, 1811, (b) the so-called 'Brut Tysilio' or 'compiled version' of Geoffrey of Monmouth's 'Historia Regum Britanniae' (pp. 41-198), also partly translated by Peter Roberts (op. cit.), and closely allied to the text of British Museum MS Cotton Cleopatra B.v., and (c) 'Brut y Saeson' to the year 1461 (pp. 199-308). Pp. 1-88 are in a late 14th century hand; the remaining pages are in the hand of Gutun Owain, the 15th century bard and herald associated with the abbey of Basingwerk. A note, dated 1630, by Robert Vaughan, Hengwrt refers to the misplacement of many pedigrees, and another note, dated 1809, by Peter Roberts refers to the identification of the volume by William Maurice, Cefn-y-braich.

A manuscript in the hand of Ieuan Fardd containing translations of the songs of Llywarch Hên, with accompanying notes (pp. 5-19); notes on Welsh and Shropshire place-names, some taken from the work of Robert Vaughan, Hengwrt (pp. 19-36); 'Extracts apparently from the English Chronicle' (pp. 37-44); parallel quotations from Llywarch Hen and Shakespeare (pp. 45-46); a translation of Cynddelw's 'Song of Eva daughter of Madawc the son of Maredudd' (pp. 55-56); an index to the Red Book of Hergest (pp. 57-74); a Welsh-English vocabulary, dating from 1542 (pp. 75-128); and a list of Welsh words compared with allied forms in Latin, Gothic, etc. (pp. 129-133).

A transcript, in an unidentified hand, of a manuscript in the hand of John ap Gruff[ydd] Eyton (see p. 72), containing a genealogical history from Adam to Cadwaladr in the form of illustrative tables with brief comments (pp. 1-30); and a genealogical Saxon history, similarly arranged and continued down to 1460 (pp. 31-72).