National Library of Wales

Plymouth Estate Records

Reference code(s): GB 0210 PLYMOUTH

Held at:

Title: Plymouth Estate Records

Short title: Plymouth estate, records

Dates of creation: 1301-1844

Level of description: Fonds

Extent and medium: 0.551 cubic metres (20 boxes, 1 bundle)

Name of creator(s): Plymouth estate


Administrative and biographical history: Elizabeth Lewis (d. 1733) of Van, St Fagans, and Soberton, Hampshire, the sole heiress of Thomas Lewis of Van, married Other Windsor (1707-32), 3rd earl of Plymouth (second creation). At the time of Thomas Lewis's death in 1736, the estate was so encumbered with debts that the interest exceeded the rental, and three private Acts of Parliament were obtained to sell the estate. The estate was in fact purchased by the trustees of Elizabeth Lewis's marriage settlement for £47,000. St Fagans castle became the Glamorgan seat of the Windsor family.
Other and Elizabeth's only son and heir, Other Lewis Windsor, 4th earl (1731-71) was succeeded by his son Other Hickman, 5th earl (1751-1799), who was succeeded by his only son and heir, Other Archer Windsor, 6th earl (1789-1833, dsp.), on whose death the barony of Windsor de Stanwell fell into abeyance. The Rev. Andrews Windsor (1754-1837, dsp.) succeeded as 7th earl, being a younger brother of the 4th earl, and he was succeeded by his brother Henry Windsor, 8th earl (1768-1843, dsp.)on whose death the earldom became extinct.
In 1855 the abeyance of the barony of Windsor was terminated in favour of Harriet Clive (1797-1869), one of the sisters of the 6th earl, who had married in 1819 with Robert Henry Clive, MP, 2nd son of the 1st earl of Powys. She assumed the additional surname Windsor in 1855. Her son and heir apparent Robert Windsor-Clive, MP, dying before her, Harriet was succeeded by her grandson Robert George Windsor-Clive (1857-1923), who was created Viscount Windsor of St Fagans and Earl of Plymouth (third creation) in 1905. He was succeeded by Ivor Miles Windsor-Clive, 2nd earl (1889-1943), who was succeeded by his son Other Robert Ivor Windsor-Clive, 3rd earl (b. 1923). The family also acquired the Alrhey estate in Flintshire through marriage with the Ellis family in the 18th century.
According to the 1873 return of owners of land, Lord Windsor owned an estimated 15,383 acres in Wales (all in Glamorgan and Flintshire), with an estimated annual rental of £39,069.


Scope and content: Records of the Welsh estates of the earls of Plymouth, 1301-1844; the two most notable groups relate to the family's Alrhey estate, Flintshire, and the Van, Glamorgan, both representing estates acquired through marriage in the 18th century, including deeds, 1301-1844; and manorial records, 15 cent.-1646, including court rolls of the manors of Magor and Undy in Monmouthshire, 1586-1603. The archive does not contain practically any personal or family papers.


Language/script: English, Latin

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 are available at NLW and HMC. The catalogue can be accessed online from
Further details relating to manorial records within the archive can be accessed online from

Detailed catalogue


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

Accruals: Accruals are not expected

Immediate source of acquisition: Deposited by the Earl of Plymouth in September 1934


Related units of description: Further papers relating to the Earl of Plymouth's estates in Wales are Glamorgan Record Office, DPL; National Library of Wales, Bute Estate Records; and Worcestershire Record Office, County Hall Branch, 705:128, 705:263, 705:54.


Publication note: Davies, John, Cardiff and the Marquesses of Bute (Cardiff, 1981),

Note: Title supplied from contents of fonds

Archivist's note: Compiled by Mair James and Stephen Benham.
The following sources were used in the compilation of this description: Principal family and estate collections L-W (London, 1999); Davies, John, Cardiff and the Marquesses of Bute (Cardiff, 1981); NLW, Schedule of Bute Estate Records.

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

Date(s) of description: June 2002



Alrhey Estate (Wales) | Archives

Estate administration | Wales | Flintshire

Estate administration | Wales | Glamorgan

Manorial courts | Wales | Monmouthshire

Manors | Wales | Monmouthshire

Van Estate (Glamorgan, Wales) | Archives

Windsor-Clive family, | Earls of Plymouth | Archives

Personal names

Ellis family, of Alrhey

Lewis family, of Van

Windsor-Clive family, Earls of Plymouth

Corporate names

Alrhey Estate (Wales)

Magor Manor (Wales)

Undy Manor (Wales)

Van Estate (Glamorgan, Wales)