Papers, 1644-1691, accumulated by members of the Herbert family of Cherbury during the course of their political activities. They include records and correspondence, 1644-1658, relating to the family’s role in the civil war throughout Wales, and their subsequent dispossession and rehabilitation; records and correspondence, 1660-1689, concerning the Montgomeryshire militia and the suppression of disaffected persons in the Welsh marches; and records and correspondence, 1660-1691, relating to the family’s support of Charles II and James II, including military service in France.

Records and correspondence, 1646-1698, accumulated by members of the Herbert family of Powis Castle during the course of their political activities. Most of the papers relate to the sequestration of their estates after the civil war, while others arise from the Herberts’ commitment to the Jacobite cause during and after the ‘Glorious Revolution’.

Papurau gwleidyddol E. G. Millward, 1959-1976, yn cynnwys deunydd yn ymwneud â'r economi Gymreig, 1966-1969; etholiadau cyffredinol, 1959-1974; gohebiaeth Grŵp Ymchwil Plaid Cymru ar Amaethyddiaeth, 1966-1970; papurau'n ymwneud ag Etholiad Cyffredinol 1970; cofnodion yn ymwneud â chyhoeddiadau Plaid Cymru, 1966-1970; papurau a thorion papur newydd yn ymwneud â'r economi a swyddi yng Nghymru, 1959-1976; papurau'n ymwneud â'r iaith Gymraeg, 1967-1981; a gohebiaeth a phapurau cyffredinol, 1969-1976 = Political papers of E. G. Millward, 1959-1976, including papers relating to the Welsh economy, 1966-1969; general elections, 1959-1974; correspondence of the Plaid Cymru Research Group relating to farming, 1966-1970; papers relating to the General Election 1970; records relating to Plaid Cymru publications, 1966-1970; papers and newspaper cuttings relating to the economy and to employment in Wales, 1959-1976; papers relating to the Welsh language and education, 1967-1981; and correspondence and general papers, 1969-1976.

Papers of D. Caradog Jones, [c.1940]-1978, comprising records relating to the Labour Party and Welsh rural areas, 1951-1959; general correspondence, 1951-1978; and papers and press cuttings, [1940x1959], concerning D. Caradog Jones and Montgomeryshire politics, 1940s-1950s.

Records, 1587-1754, relating to the government of Montgomery, Shropshire, Wales and the marches, as well as the administration of the Cherbury and Powis Castle estates.