Fonds GB 0210 PLASYNCEFN - Plas-yn-Cefn Papers and Documents,

Identity area

Reference code



Plas-yn-Cefn Papers and Documents,


  • 1422-1900 / (Creation)

Level of description


Extent and medium

0.715 cubic metres (25 boxes, 21 vols)

Context area

Name of creator

Biographical history

Cefn is in the civil parish of the same name, which was formed in 1865 from that part of the parish of St Asaph that lay in Denbighshire. The mansion of Cefn is called occasionally Cefn in Wigfair in early 18th century deeds, and occasionally Cefn Meiriadog in 1790s-1820s deeds, after the townships of Wigfair and Meiriadog between which it lay. The mansion is now called Plas-yn-Cefn, but was called Cefn until at least 1883, and the estate was called the Cefn estate until at least 1892.

The Plas-yn-Cefn estate was owned by the Lloyd family until it failed in the male line with the death in c. 1848 of Edward Lloyd. The estate was inherited by his eldest daughter Anna, who married Herbert Watkin Williams-Wynn (1822-1862), second son of Sir Watkin Williams-Wynn of Wynnstay (1772-1840), in about July 1855. The Plas-yn-Cefn estate became part of the Wynnstay estate which in 1873 measured 87,919 acres in Wales, with an estimated rental of £43,274.

Archival history

Immediate source of acquisition or transfer

Deposited by Sir Robert W. H. Watkin Williams-Wynn, ninth baronet, in December 1938, and by Colonel Sir Owen Watkin Williams-Wynn, baronet, in 1970 and 1971.

Content and structure area

Scope and content

Records of the Lloyd family of Cefn, Denbighshire, and of their estates in Caernarfonshire, Denbighshire and Flintshire, mainly comprising deeds, 1422-1900, including deeds relating to lead and coal mines in Flintshire and copper mines in Caernarfonshire, 18-19 cent.; papers relating to ecclesiastical affairs, 1562-1864; and important papers of Humphrey Humphreys (1648-1712), cleric and antiquarian, and bishop of Bangor, 1689-1701, and Hereford, 1701-12, relating to his period as bishop of Hereford.

Appraisal, destruction and scheduling

Action: All records deposited at NLW have been retained.


Accruals are not expected

System of arrangement

Arranged chronologically in three sections: deeds, 1422-1883, correspondence, 1688-1882, and volumes, 1710-1770.

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 laws apply.

Language of material

  • English
  • Latin

Script of material

Language and script notes

English, Latin.

Physical characteristics and technical requirements

Finding aids

Hard copies of the catalogue of the 1938 deposit are available at NLW and HMC. The 1970 and 1971 deposits remain uncatalogued.

Allied materials area

Existence and location of originals

Existence and location of copies

Related units of description

Further papers relating to Bishop Humphrey Humphreys are correspondence and papers, 1691-1709, in National Library of Wales, Bodewryd Papers; letters from him to to Edward Wynn in Penrhyn Castle Papers, and correspondence with Thomas Mostyn, 1683-1692, in (Bangor) Mostyn Collection, both in the Department of Manuscripts, University of Wales Bangor Library, and letters to Bishop William Lloyd, Gloucestershire Record Office, D49 and D3549.

Related descriptions

Publication note

Griffiths, G. Milwyn, 'Deposited collections, 33, The Plas yn Cefn Collection', National Library of Wales Journal, XII (1961-1962), pp. 292-7.

Notes area


Title supplied from contents of fonds.

Alternative identifier(s)

Virtua system control number


GEAC system control number


Access points

Place access points

Genre access points

Description control area

Description identifier

Institution identifier

Rules and/or conventions used

This description follows NLW guidelines based on ISAD(G) Second Edition; AACR2; and LCSH.


Level of detail

Dates of creation revision deletion

November 2001.


  • English



Archivist's note

Compiled by Stephen Benham.

Archivist's note

The following source was used in the compilation of this description: Griffiths, G. Milwyn, 'Deposited collections, 33, The Plas yn Cefn Collection', National Library of Wales Journal, XII (1961-1962);

Accession area