An incomplete set of depositions in a case concerning Llyn Cynwch and a water course leading to Melin y Pentre, part of the possessions of the dissolved abbey of Cymer, Merionethshire.

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 manuscript containing a Merioneth quarter sessions record, 1601, relating to the relief of the poor, the punishment of rogues, the rates of servants' wages, the repairing of bridges and highways, the suppression of alehouses, etc.; papers relating to the Berain estate, 1585; miscellaneous legal papers, including court records from Cardiganshire, 1596, and from Radnorshire, 1597.

Transcripts of Court of Star Chamber Proceedings, Nos. Elizabeth G. 13/21, J. 22/2, S. 29/36. W. 20/25, and James I 210/24, 223/17, and 311/33 (see Ifan ab Owen Edwards: A Catalogue of Star Chamber Proceedings relating to Wales (1929), pp. 31-2, 36-7, 185, 171). The documents relate to actions of Caernarvonshire, Merioneth, and Denbighshire interest.