Estate and family records of the Kemeys and Kemeys-Tynte families of Cefnmabli, Monmouthshire, including surveys, valuations, rentals, and accounts, 1570-[early 19 cent.]; probate records, deeds, and legal papers, 1586-[1850s]; geneaological papers, 1694-[mid-18 cent.]; and correspondence, 1642-1888. The main interest of this archive lies in the correspondence relating to political events and affairs, especially for the late seventeenth century. The archive also includes a survey of the estates of Henry, earl of Pembroke, in Glamorgan and Monmouthshire, 1570, and a rental of the estate of the regicide Henry Marten, [c. 1652].

A collection of printed Votes of the House of Commons, 21 October 1680-10 January 1681 (ff. 26-100), and 21-28 March 1681 (ff. 130-136), together with other printed parliamentary acts, speeches, and proclamation, all kept and some annotated by William Williams, Speaker of the House of Commons, and MP for Chester.
Significant manuscript additions by Williams include notes on his election as Speaker on 21-22 October 1680 (ff. 21-23), on the sudden dissolution of the Oxford Parliament on 28 March 1681 (ff. 137), and on his later career, 1687-1694 (f. 138). Corrections on the printed papers in the Speaker's hand appear on ff. 48, 50, 56, 87, 93, 126-8, 131.

An incomplete copy of a treatise signed 'Cornwell 24 April 1632', on 'the expedition of bills in the Commons'; a copy of 'Sir Wm. Scroggs's speech to the Lord Chancellor upon his receiving his commission of Judge of ye Court of Common Pleas, 1678'; 'a panegyrick on Oliver Cromwell by Mr. Waller, 1655'; and two songs by Thomas Durfey beginning 'Remember yee Whiggs wt was formerly done' and 'Now at length the riddle is expounded'.

A transcript of proceedings in Parliament concerning the liberty of the subject, 1628, including speeches and arguments by Sir Dudley Diggs, Mr Littleton, Mr Seldine and Sir Edward Cooke, and 'the obiections by the King's Councell'.

Official papers deriving from administrative procedures of central government, dated between 1581 and 1887, consisting of manuscript copies and published versions of speeches, addresses and official letters, Acts of Parliament, petitions and cases, proclamations, lists of ministers and MPs, and miscellaneous other political papers. The majority originate from the second half of the seventeenth century, giving an instructive view of the relations between the Stuart monarchs and their respective parliaments, against a background of political unrest and religious dissension. Recurrent themes include the Dutch invasion, the accession and policies of William III, Jacobite resistance, Protestant religion, European wars, taxation, home and foreign trade, and national finance.

A letter, 22 December 1679, from Henry Herbert, 4th Baron of Cherbury, to Arthur Herbert, vice-admiral of the Fleet in the Mediterranean, relating to his election contest against Lord Powis and the fear of popery.