A collection of transcripts, mainly by Robert Vaughan, Hengwrt, of records relating to North Wales, including the extent of North Wales by John de Delves, 26 Edward III; a record of a view of frankpledge for the commote of Menai, 28 Henry VIII; ministers' accounts for Flintshire, 30-31 Henry VIII; extracts from miscellaneous inquisitions, rentals, court rolls, and correspondence; receipts of Lewis Owen, deputy receiver of North Wales, 1 & 2 Philip and Mary; notes of leases under the exchequer seal, 1579; notes on the form of administration of justice in Wales by Auditor Hill; 'The State of the Dominion of Wales' by Sir Thomas Canon; accounts of John Lloyd of Ragad, escheator of Merioneth; instructions to the Earl of Bridgewater, President of the Council in Wales and the Marches, 1633; a roll of the coroner for Merioneth, 10-11 Edward III; estreats of fines in North Wales, 22-30 Edward III; lists of persons indicted in Merioneth, 6- 19 Richard II; records of pleas before the justice of North Wales, 4 Edward II; a list of recognisances in the exchequer at Caernarvon, 18 Edward II; lists of persons in Anglesey fined for being in arms with Owen Glyndyfrdwy, with lists of outlaws and jurors; and a breviate of an account between Sir John Salesbury, chamberlain of North Wales, and Lewis Owen, his deputy, 1555.

A miscellaneous gathering of papers, some of which have been endorsed by Bishop Humphreys: (a) papers relating to Denbighshire, including extracts from the Survey of 1334 (ff. 3-7); (b) copies of papers relating to the petition (1619) of Thomas Canon, Surveyor of Crown lands in South Wales, concerning the supplanting of the mountain thieves of Wales, and disposing habitations in convenient places (see Calendar of State Papers. Domestic 1619-1623, p. 55) (ff. 8-9); (c) copy of a list of the inhabitants of Anglesey who were amerced for being in arms and rebellion with Owen Glyndyfrdwy, 1406, with a table of the fines, copies of the jury panels, and a list of outlaws (a portion, the lists for the commote of Llivon from a fragment found among Edward Lhuyd's papers, was published in Archaeologia Cambrensis, 3rd ser., 5 (1859), pp. 177-180; Browne Willis, in A Survey of the Cathedral Church of Bangor... (London, 1721), pp. 84-85, quotes from a copy of this record, which he saw in the collection of the then Dean of Bangor) (ff. 61-90); (d) a seventeenth century Welsh calendar (ff. 10-16); (e) 'Catalogus Alphabeticus s[anc]torum Cambrobritannicae', by Bishop Humphreys (ff. 17-22); (f) copies of papers on British Chronology sent by Robert Vaughan of Hengwrt to Archbishop [James] Us[s]her (c.f. NLW MS 3044B) (ff. 23-51).