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National Library of Wales
Plas Tregayan estate, records

Reference code(s): GB 0210 TREGAYAN

Held at: National Library of Wales

Title: Plas Tregayan Estate Records

Short Title: Plas Tregayan estate, records

Creation date(s): [late 13 cent.]-1926

Level of description: Fonds

Extent: $a 0.108 cubic metres (4 boxes)

Name of creator(s): Plas Tregayan estate


Administrative/Biographical history: Plas Tregayan estate, Anglesey, was owned by the Prytherch family; John Prytherch (alive 1575) appears to have been the first member of the family to have used the surname. The estate remained in the hands of the Prytherch family until the death of John Prytherch in 1724. He was succeeded by his daughter Ann who, in 1725, married John Edmunds, rector of Aber, Caernarfonshire, and son of John Edmunds, agent of the Penrhyn Castle estate. She was succeeded by her eldest son John who was drowned near Harlech in 1754, aged 28. The estate then passed to his sister Margaret (c. 1733-1784) who had married Robert Lloyd of Gwynus, Llŷn. Their eventual heir was their third son, John Lloyd of Cesailgyfarch, Caernarfonshire. He was succeeded by his only daughter Margaret Hooper Lloyd (1790-1858).
Margaret Hooper Lloyd married Thomas Parry Jones-Parry (1784-1845) owner of the Llwyn Onn estate, Denbighshire, and the Aberdunant estate, Caernarfonshire, and brother of Sir Love Parry Jones-Parry, owner of the Madryn estate, Caernarfonshire. Thomas and Margaret's eldest surviving son, Robert Lloyd Jones-Parry (1816-1870), inherited the Aberdunant estate. He was succeeded by his son Robert Lloyd Jones-Parry (1816-1870). His son, Thomas Edward John Lloyd (b. 1856) also inherited the property of his great-grandfather, Vice Admiral Robert Lloyd of Tregayan, Anglesey, and assumed the name of Lloyd on succeeding to the estate.


Scope and content/abstract: Deeds, relating to the Plas Tregayan estate in Anglesey and Merioneth, 1810-1926, and associated estates, namely Llwyn Onn in Denbighshire, [late 13 cent.]-1879, Madryn estate in Caernarfonshire, 1638-1831, Aberdunant estate, Anglesey, Caernarfonshire and Merioneth, 1845-1902, and Cesailgyfarch estate, Caernarfonshire, 1638-1897.


Language/scripts of material: English, Latin

System of arrangement: The 1945 deposit is arranged chronologically (listed in vol. I) and by property (listed in vol. II); with the 1937 and 1956 deposits arranged chronologically (listed in vol. II).

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: A hard copy of the catalogues, under the previous title, Roger Lloyd Collection, are available at NLW. An online catalogue under the current can be accessed from


Appraisal, destruction and scheduling information: All records deposited at NLW have been retained

Accruals: Accruals are not expected

Archival history:

Immediate source of acquisition: Deposited by Roger Lloyd, Plas Tregayan, Anglesey in 1937, May 1945 and March 1956.


Related material: Further Plas Tregayan estate records are Anglesey Record Office, W/DH (Lloyd Papers) and Denbighshire Record Office, DD/LO. The main Llwyn Onn estate archive is Denbighshire Record Office, DD/LO, which also includes papers relating to the Gesailgyfarch estate. Further papers relating to the Madryn estate are National Library of Wales, Madryn Estate Records and Broom Hall Estate Records.


Note: Previously called Roger Lloyd Collection. Current title supplied from contents of fonds; previous title based on name of depositor.

Archivist's note: Compiled by Mair James.
The following sources were used in the compilation of this description: NLW, Schedule of Roger Lloyd Collection; Griffith, John Edwards, Pedigrees of Anglesey and Carnarvonshire Families (Wrexham, 1998 reprint).

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

Date(s) of descriptions: November 2002

Aberdunant Estate (Wales) | Records and correspondence
Cesailgyfarch Estate (Wales) | Records and correspondence
Estate administration | Wales | Anglesey
Llwyn Onn Estate (Wales) | Records and correspondence
Madryn Estate (Wales) | Records and correspondence
Plas Tregayan Estate (Anglesey, Wales) | Archives

Personal names

Corporate names
Aberdunant Estate (Wales)
Cesailgyfarch Estate (Wales)
Llwyn Onn Estate (Wales)
Madryn Estate (Wales)
Plas Tregayan Estate (Anglesey, Wales)


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