Cause book, 1659-87, of John Maddocks (1601-62), Bodfari, co. Flint, containing lists of the civil cases heard on the Chester and North Wales circuits of the Great Sessions in Wales, April 1659 - October 1661 and October 1659 - September 1661 respectively, in which he appeared as an advocate (ff. 2-36; 170-84 verso inverted text); two civil cases heard in the Great Sessions for co. Denbigh, August 1666, are listed in another hand on f. 37. The volume was later used by another scribe (the entry on f. 156 verso is in another hand who also added memoranda on f. 186 verso) to copy extracts from the court book of the bishop of Bangor's manors of Llan, Llech and Llanelidan, co. Denbigh, for sessions held May 1683 - November 1687 before John Maddocks, steward, probably the advocate's son (ff. 156 verso-68 verso inverted text). Other items comprise legal and financial memoranda, including a list, 1662, in the hand of Edward Wynne of bonds delivered by him (f. 185 recto-verso inverted text).

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.