Fonds GB 0210 COEDYMAEN - Coedymaen (Group 1) Papers,

Identity area

Reference code



Coedymaen (Group 1) Papers,


  • 1567-1812 / (Creation)

Level of description


Extent and medium

0.029 cubic metres (1 box)

Context area

Name of creator

Biographical history

Sir William Williams (1634-1700), lawyer and politician, was the eldest son of Dr Hugh Williams, rector of Llanrhyddlad and Llantrisant, Anglesey. He was recorder of Chester, 1667-1684, and MP for the borough, 1675-1685; for Montgomeryshire boroughs, April-June 1685; and for Beaumaris, 1689-1690, 1695-1700. He was elected Speaker of the House of Commons in 1680 and again in 1681. In 1684 he was prosecuted for a scandalum magnatum having, as Speaker, authorised the publication of the Thomas Dangerfield's Narrative and was fined £10,000. He was originally a supporter of the country party but, following his fine, he became a supporter of James II for which he received a knighthood and the office of solicitor-general, both in 1687. He was one of the prosecuting counsel in the trial of the Seven Bishops in 1688. Following James's flight, he changed sides again and subsequently helped to draft the Bill of Rights. He bought the Llanforda estate, Oswestry, from the father of Edward Lluyd in 1665, and by marriage acquired the Glascoed estate, Llansilin, Denbighshire, where he was buried. His son, also called Sir William Williams (1684-1740), inherited Llanforda and Glascoed, whilst his grandson Sir Watkin Williams Wynn (d. 1749) inherited the Wynnstay estate through his mother.

Archival history

Immediate source of acquisition or transfer

Deposited by Arthur Williams-Wynn D.L., J.P., Coedymaen, Welshpool, in 1925, and purchased in 1990 with funding from the National Heritage Memorial Fund.

Content and structure area

Scope and content

Papers of Sir William Williams, mainly legal papers, 1685-1693; political papers, 1680-1698; and papers relating to, or collected by his ancestors or descendants, 1567-1812. The legal papers include papers relating to the trials of the Earl of Shaftesbury, 1677, Algernon Sidney, 1683, his own trials for a scandalum magnatum brought by James II and the Earl of Peterborough, 1685-1686, and the trial of the Seven Bishops, 1688.

Appraisal, destruction and scheduling

Action: All records have been retained.


Accruals are not expected.

System of arrangement

Arranged into the following: legal papers; political papers; and miscellaneous.

Conditions of access and use area

Conditions governing access

Readers consulting modern papers in the National Library of Wales are required to sign the 'Modern papers - data protection' form.

Conditions governing reproduction

Usual copyright regulations apply.

Language of material

Script of material

Language and script notes

English, French, Welsh.

Physical characteristics and technical requirements

Finding aids

A hard copy of the catalogue is available at the National Library of Wales. The catalogue can be accessed online.

Allied materials area

Existence and location of originals

Existence and location of copies

Related units of description

Further papers are NLW, Wynnstay Estate Records; and NLW, Canon Trefor Owen Manuscripts.

Related descriptions

Notes area


Title supplied from domicile of depositor. The NLW Coedymaen Papers (Group 2) comprise correspondence and appointments of Charles Watkin Williams Wynn (1775-1850), and do not relate to Sir William Williams.

Alternative identifier(s)

Virtua system control number


Project identifier


Access points

Place access points

Genre access points

Description control area

Description identifier

Institution identifier

Llyfrgell Genedlaethol Cymru = The National Library of Wales

Rules and/or conventions used

Description follows ANW guidelines based on ISAD(G) 2nd ed.;AACR2; and LCSH


Level of detail

Dates of creation revision deletion

August 2003; minor revisions May 2005


  • English



Archivist's note

Compiled by Annette Strauch for the ANW project. The following sources were used in the compilation of this description: NLW, Schedule of Coedymaen Papers (Group 1); Dictionary of Welsh Biography down to 1940 (London, 1959).

Accession area