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].