ANW logo

Archives Network Wales

Search the collections:        Search help | Advanced search   | Browse by repository

Browse the indices: Combined(searchable) Personal names Corporate names Places Subjects



[New to Archives?]

[Family history]

[Admin menu]

List of repositories  |  List of collections at National Library of Wales  |  Repository home page  |  Contact details

National Library of Wales
Bryngwyn estate, Montgomeryshire, records

Reference code(s): GB 0210 MOSBRA

Held at: National Library of Wales

Title: Bryngwyn (Montgomeryshire) Estate Records

Short Title: Bryngwyn estate, Montgomeryshire, records

Creation date(s): 1709-1813

Level of description: Fonds

Extent: 82 items

Name of creator(s): Bryngwyn (Montgomeryshire) estate


Administrative/Biographical history: Little is known of the Mostyn family of Bryngwyn until a William Mostyn of Bryngwyn whose will was proved in 1729. John Mostyn, esq., was living at Bryngwyn in 1740 with his brothers William Mostyn and Humphrey Mostyn, esqs, when William married Grace, daughter of Robert Wynne of Plas Newydd, Denbighshire, esq. The capital messuage of Plas Kynaston in the parish of Ruabon, Denbighshire, was included in the marriage settlement.
William Mostyn (d. c. 1786) is described as of Bryngwyn, esq., 1755-1769, and of Plas Kynaston, esq., 1783-1787. His eldest son and heir apparent was William Mostyn (fl. 1769-92, d. pre-1812) the younger, of Bryngwyn, esq. He married Rebecca (fl. 1769-92) daughter of Rebecca Dod of Edge, Cheshire, widow, in 1769. He had assumed the surname Owen by 1774, and was known as William Owen of Woodhouse, esq., formerly William Mostyn the younger. Their eldest son and heir apparent was also called William Owen (fl. 1791-1813) of Woodhouse, esq.
Bryngwyn was mortgaged in 1787 to William Jennens of Grosvenor Square, London, and Plas Kynaston was mortgaged in 1788 by William Owen to John Freer of Birmingham, surgeon. In 1791 William Owen, his wife and son put Bryngwyn into the hands of trustees, members of the Wynne family of Plas Newydd and the Dod family of Edge. Jenners was still receiving interest payments in 1798, as was Freer in 1797.


Scope and content/abstract: Deeds and documents relating to the Mostyn family of Bryngwyn, Montgomeryshire, and Plas Kynaston, Denbighshire, 1729-84, and their successors, the Owen family of Woodhouse, Shropshire, 1774-1813.


Language/scripts of material: English

System of arrangement: Arranged chronologically

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 under the former title, British Records Association, 1966, Parcel 1157, are available at NLW and HMC. An on-line catalogue under the current title, Bryngwyn (Montgomeryshire) Estate Records, can be accessed from


Appraisal, destruction and scheduling information: All records donated to NLW have been retained

Accruals: Accruals are not expected

Archival history: These documents probably came into the possession of Thomas Lane (alive 1787-1813) of Goldsmith Hall, in consequence of his involvement in the trusteeship of Bryngwyn and other properties.

Immediate source of acquisition: Donated in 1966 by the Goldsmith's Company, London, per the British Records Association.


Publication note: Humphreys, T. M., ' Bryngwyn: a study of the impact of family settlements, extravagence and debt on a Welsh estate' Montgomeryshire Collections LXXV (1987), pp. 70-93.


Note: Formerly BRA 1966. Current title supplied from contents of fonds; former title based on name of depositor and year of deposit.

Archivist's note: Compiled by Stephen Benham.
The following source was used in the compilation of this description: NLW, Schedule of Deeds and Documents received from British Records Association, 1966.

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

Date(s) of descriptions: May 2002


Personal names
Mostyn family , of Plas Kynaston
Owen family , of Woodhouse

Corporate names
Bryngwyn Estate (Wales)
Plas Kynaston Estate (Wales)


List of repositories  |  List of collections at National Library of Wales  |  Repository home page  |  Contact details