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National Library of Wales
Ruthin Lordship, records

Reference code(s): GB 0210 RUTHIN

Held at: National Library of Wales

Title: Ruthin Lordship Records

Short Title: Ruthin Lordship, records

Creation date(s): 1334-1854

Level of description: Fonds

Extent: 1.262 cubic metres (22 boxes, 1 flat parcel, 94 vols, 7 rolls)

Name of creator(s): Lordship of Ruthin


Administrative/Biographical history: Following the defeat of Dafydd ap Gruffudd, brother of Prince Llywelyn, in 1282, Edward I granted the castle of Ruthin and the lordship of Dyffryn Clwyd (the earlier name for the lordship of Ruthin) to Reginald de Grey, Justiciary of Chester. Reginald was succeeded in the lordship of Ruthin, by his son, John De Grey, and then by his grandson, Roger de Grey. The last De Grey, Earl of Kent, sold the castle and the lordship to Henry VIII in about 1520. It was subsequently given to Dudley, Earl of Warwick. In 1632 Ruthin Castle was purchased by Sir Thomas Myddelton of Chirk Castle (1585-1666), who acquired the stewardship of the lordship in 1635.
On the death of Richard Myddelton, the last surviving male heir of the Myddleton family, in 1796, the family's Chirk Castle estate was divided between his sisters. The Ruthin Castle portion, which included the lordship of Ruthin, passed to Harriet who bequeathed the estate to her sister, Maria (d. 1843), wife of Frederick West (d. 1852). Their second son, William Cornwallis-West succeeded to the Ruthin Castle estate on the death of his brother, Frederick Myddelton West in 1868.


Scope and content/abstract: Rentals, surveys and accounts, 1334-1852, relating mainly to the lordship of Ruthin or Dyffryn Clwyd, Denbighshire; court records of the lordship of Ruthin, 1439-1850, including court books, 1718-1817, and court files, 1741-1849; estate correspondence, 1604-1848; and deeds, 1444-1854, relating to the lands of the lordship of Ruthin, mainly in Denbighshire. Most of the records relate to the period when the lordship was owned by the Myddelton family of Chirk Castle.


Language/scripts of material: English, Latin

System of arrangement: Arranged into the following: rentals, surveys and accounts; court records; correspondence; and deeds and documents.

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

Finding aids: Hard copies of the catalogue are available at NLW and HMC. It can be accessed online from
Further details relating to manorial records within the archive can be accessed on-line from


Appraisal, destruction and scheduling information: All records purchased by NLW have been retained

Accruals: Accruals are not expected

Archival history:

Immediate source of acquisition: Deposited by Major G. Cornwallis West in 1920 and purchased by NLW in 1929.


Related material: Other Ruthin lordship records, including those of the later ownership by the West and Cornwallis-West family are National Library of Wales, Longueville; part of this archive remains uncatalogued. Futher papers relating to the Myddelton family are National Library of Wales, Chirk Castle, Plas Power Estate Records, and Kinmel Deeds, and Denbighshire Record Office,DD/CC (Chirk Castle) and DD/PP (Plas Power), and Chirk Castle correspondence and papers, 1648-1808. The main, and earliest, group of records of the lordship of Ruthin (under the title Dyffryn Clwyd) is held by the Public Record Office.


Note: Title supplied from contents of fonds

Archivist's note: Compiled by Mair James.
The following sources were used in the compilation of this description: Dictionary of Welsh Biography down to 1940 (London, 1959); Griffith, John Edwards, Pedigrees of Anglesey and Carnarvonshire families (Wrexham, 1998 reprint); Taylor, A. J. The Welsh Castles of Edward I (London, 1986).

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

Date(s) of descriptions: October 2002

Manors | Wales | Dyffryn Clwyd
Ruthin Castle Estate (Wales) | Archives

Personal names
Myddelton family , of Chirk , Denbigh , Ruthin , Gwaenynog , London and Essex

Corporate names
Chirk Castle Estate (Wales)
Ruthin Castle Estate (Wales)
Ruthin Manor, Borough and Lordship (Denbighshire, Wales)


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