File NLW MS 24107F - Mostyn family papers

Identity area

Reference code

NLW MS 24107F


Mostyn family papers


  • 1776-[?1927] (mostly 1776-1880) (Creation)

Level of description


Extent and medium

65 ff. (some folios formerly folded as two leaves)

Placed in melinex sleeves within ringed box at NLW.

Context area

Name of creator

Biographical history

Hester Lynch Piozzi (1741-1821) inherited the Bachegraig estate of the Salusbury family on the death of her mother, Hester Maria, in 1773. The estate comprised a wood, a few farms, a dilapidated church and a few cottages, along with Bachegraig House. Hester and her husband, Gabriele Piozzi (d. 1809) built a new house on the estate called Brynbella, taking up residence in 1795. Bachegraig was the earliest example of a brick house in Wales, erected by Sir Richard Clough in 1567 at the foot of Tremeirchion Hill.

Hester was the daughter of John Salusbury (1710-1762) of Bachegraig, Governor of Nova Scotia and Hester Maria (d. 1773), a descendant of the Salusbury family of Lleweni. Hester married firstly, Henry Thrale (d. 1781), a London brewer. In 1784, she married secondly, Gabriele Piozzi, an Italian music master. In January 1798 Hester and Gabriele adopted the five year old son of Gabriele's brother, Giovanne Battiste. The boy became known as John Piozzi (d. 1858). Hester was part of a literary circle, and was a friend and correspondent of Dr Samuel Johnson.

The Brynbella estate passed to John on his marriage to Harriet Maria Pemberton of Condover Hall, Shropshire. Hester thereafter resided at Bath. Sir John was knighted in 1817 and became known as Sir John Salusbury Piozzi Salusbury.

Name of creator


Biographical history

Name of creator

Name of creator

Name of creator

Biographical history

Name of creator

Biographical history

Name of creator

Biographical history

Name of creator

Biographical history

Archival history

The Piozzi poem (f. 2) received by NLW in plastic sleeve purchased in Oxford.

Immediate source of acquisition or transfer

Forum Auctions; London; Purchased at auction, lots 307 and 317; 30 March 2017; 99745154402419.

Content and structure area

Scope and content

Poetry, correspondence and other miscellaneous family papers, 1776-1880, [?1927], relating to the Mostyn and Lloyd-Mostyn family of Mostyn, Flintshire, and the Lloyds of Pengwern, Flintshire.
The papers include: (i) poetry, 1776-[1834x1843] (ff. 1-5), comprising verses to Sir Roger Mostyn, 5th bart, by Richard Williams of Fron, 1776 (f. 1), a song in honour of Sir Edward Pryce Lloyd, 2nd Bart (later 1st Baron Mostyn) by Mrs Piozzi, 1806 (f. 2), verses 'To the Lady Harriett Mostyn on the birth of her ninth child' by Angharad Llwyd, 1838 (f. 3), and 'Lines on Sir R[obert] W[ilia]mes Vaughan, Bart' by R. Owen, [1834x1843] (f. 5), all apparently unpublished; (ii) some sixteen letters, 1801-[1864] (ff. 6-23), including juvenile letters from Edward Mostyn Lloyd[-Mostyn] (later 2nd Baron Mostyn) to 'Granny' [possibly his great-aunt Frances Mostyn], 1803-1806 (ff. 7-11), an incomplete transcript of 'Savage Mostyn's Indian Letter', dated 10 July 1858 (ff. 17-18), and a letter, [?21 February 1864], from Essex Mostyn to her sister Bessy [Elizabeth Weekes], concerning the disastrous fire at Pengwern, home of their Uncle and Aunt, on 19 February (f. 19); (iii) genealogical and heraldic notes, 1810-1880, [?1927] (ff. 24-40), including an outline of the history of the Lloyds of Pengwern, Flintshire, 1810 (ff. 24-25), notes for a proposed coat of arms for the Mostyn family, [?1831] (ff. 30-33), and notes by F. de Witt, [1860s] (ff. 36-37); (iv) papers, 1823-1838, relating to the lease of a property in Lower Seymour Street, London (ff. 41-44); (v) various lists of visitors and guests at Mostyn, 1832-1877 and undated (ff. 45-57); and (vi) miscellaneous other items including an essay by F. Mostyn, 1781 (f. 58), extracts from the will of Sir Roger Mostyn, 5th bart, [mid 1830s] (ff. 60-61), and a memorandum of Elizabeth Mostyn's last wishes, [?1842] (f. 62).

Appraisal, destruction and scheduling


System of arrangement

Arranged at NLW as follows: poetry; letters; other papers (each group arranged chronologically where possible).

Conditions of access and use area

Conditions governing access

Conditions governing reproduction

Usual copyright laws apply.

Language of material

  • English

Script of material

Language and script notes


Physical characteristics and technical requirements

Some leaves torn.

Finding aids

Allied materials area

Existence and location of originals

Existence and location of copies

Related units of description

See also NLW, Mostyn manuscripts (NLW MSS 3020-3076, 21238-21254, 21693B, 23877A); Bangor University, (Bangor) Mostyn Manuscripts; Hawarden, Flintshire Record Office, Mostyn Manuscripts (comprising estate records).

Related descriptions

Notes area


Title based on contents.

Alternative identifier(s)

Alma system control number


Access points

Subject access points

Place access points

Genre access points

Description control area

Description identifier

Institution identifier

Rules and/or conventions used

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


Level of detail

Dates of creation revision deletion

October 2017.




Archivist's note

Description compiled by Rhys M. Jones.

Accession area