Castlereagh papers

Repository: Public Record Office of Northern Ireland

Identity Statement

TitleCastlereagh papers
Archive ReferenceGB 0255 PRONI/D3030
Web Link to this Entry
Creation Dates1697-1847
Extent Mediumc 7,450 documents + c 40 volumes


Creator(s): Stewart, Robert, 1769-1822, Viscount Castlereagh

  • Administrative History ↴

    Robert Stewart, Viscount Castlereagh, was born in Dublin on 18 June 1769. He was the only surviving child of his father's first marriage, to Sarah Frances, daughter of the 1st Marquess of Hertford; and grandson of Alexander Stewart of Ballylawn, Co. Donegal, and Mary (nee Cowan) half-sister and heir of Sir Robert Cowan, Governor of Bombay. Castlereagh's father was created in 1789 Baron Londonderry, and advanced to the viscountcy of Castlereagh in 1795, to the earldom of Londonderry in the following year, and finally to the marquessate of Londonderry in 1816.
  • Archival History ↴

    Deposited by the National Trust in 1974.
  • Immediate Source Acquisition ↴


Content & Structure

  • Scope & Content: Stewart, Robert, 1769-1822, Viscount Castlereagh ↴

    The Castlereagh Papers consist of c.7,450 documents and c.40 volumes, 1798-1822 (including some earlier and some later documents), deriving from Robert Stewart, Viscount Castlereagh, later 2nd Marquess of Londonderry, some papers of his wife, Emily, his half-brother and successor, the 3rd Marquess, and the 3rd Marquess’s wife, Frances Anne.
    The core of ‘The Castlereagh Papers’ is 37 volumes containing 6,217 letters and papers which were arranged and bound in the 3rd Marquess’s time and were selectively published under his remote editorial control as the Memoirs and Correspondence of Viscount Castlereagh (12 vols, London, 1848-1853).
    The topics covered by the papers which relate to Castlereagh’s term as Foreign Secretary and Leader of the House of Commons include: developments in the war in Europe, the Treaty of Fontainebleau, the Congresses of Châtillon and Vienna, the conclusion of peace and the Treaty of Vienna, subsequent diplomatic relations among the allies, and the Congresses of Aix-la-Chapelle and the Troppau, the Anglo-American War, the peace negotiations at Ghent and the Treaty renewal of the East India Company’s charter in 1813, the tithe system and distress in Ireland, Catholic Emancipation, economic depression, industrial unrest, the movement for social and political reform in England, cash payments, the supply of bank-notes and other fiscal matters, the Queen Caroline affair, agricultural distress, grain imports and exports, and taxation. The correspondents in this group include: the Prince Regent; Tsar Alexander I; Lord Liverpool, Prime Minister; Sir Arthur Wellesley, now Marquess and Duke of Wellington; General Lord Cathcart ; General Sir Thomas Graham; Lord Bathurst, Secretary of State for War and the Colonies; Lord Burghersh, Aberdeen, Clancarty and Stewart (Castlereagh’s half-brother); sir Edward Thornton; Sir George H. Rose; Frederick Lamb; William A’Court; Stratford Canning; Sir Augustus J. Foster; Prince Metternich; Prince Hardenburg; Prince Talleyrand; Count Nesselrode; Count Lieven; Count Pozzo di Borgo; Cardinal Consalvi; Sir John C. Hippisley; William Wilberforce; Thomas Clarkson; and Zachary Macaulay.

    -Extracted from a full description of the Castlereagh Papers in the PRONI catalogue:

  • Appraisal Destruction ↴

    Permanent Retention
  • Arrangement ↴

    The collection is arranged as follows:
    D3030/A Copy official correspondence between the government of the Madras Presidency and the Board of Control: 1802-1805
    D3030/AA Letters from Edward Cooke to General Charles William (later Lord) Stewart
    D3030/B Correspondence between the government of the Bengal Presidency and the Board of Control: 1802-1805
    D3030/BB Letters, addresses and other papers of General Stewart
    D3030/C Copy official correspondence between the government of the Bombay Presidency and the Board of Control: 1804-1805
    D3030/CC Letters and other papers of the 3rd Marquess of Londonderry
    D3030/D Printed correspondence between Lord Liverpool, Lord Wellesley and Lord Castlereagh
    D3030/DD Letters and copy letters of the 3rd Marquess of Londonderry, about his pretensions to the colonelcy of the Londonderry militia and to promotion in the English peerage
    D3030/E MS and printed statements of accounts relating to the expenditure of secret service money during Castlereagh’s terms as secretary of state for war and the colonies
    D3030/EE Draft dispatches and memoranda from Londonderry, as Ambassador to Vienna, to George Canning, Foreign Secretary
    D3030/F Letters from Charles Pratt, 1st Earl Camden, to his step-grandson, Robert Stewart
    D3030/FF Letters to Londonderry about the claims on the Spanish government of former members of the British Auxiliary Legion
    D3030/G Miscellaneous and other papers of Castlereagh, mainly about politics
    D3030/GG Letters and dispatches from General Stewart to Castlereagh, about the events of the Peninsula War
    D3030/H Letters from Robert Stewart, 1st Marguess of Londonderry, to his son Robert, Viscount Castlereagh
    D3030/HH Bound printed brief account of Lord Londonderry’s career up to 1838
    D3030/J Letters from Robert, 1st Marquess of Londonderry, Lord Castlereagh, Sir Charles Stewart, and, Frances, Marchioness of Londonderry, to or about James Cleland
    D3030/JJ Letters to Lady Londonderry from Benjamin Disraeli, Prince Gortchakov, Count Brunov and Mary, Duchess of Gloucester
    D3030/K MS letters in Italian and French with English Translations, from Pius VII, Cardinal Borgia and the Cardinal of York to Sir John Coxe Hippisley
    D3030/KK Letters and address relating to the marriage of Viscount Seaham, second son of the 3rd Marquess, and eldest son of Frances Anne, Marchioness of Londonderry
    D3030/L Letters mainly between Castlereagh as President of the Board of Control, and his predecessor, Henry Dundas
    D3030/LL Letters to Frances Anne, Lady Londonderry, from her children
    D3030/M Papers of Robert Stewart, 1st Marquess of Londonderry, Robert, 2nd Marquess of Londonderry, and Charles William, 3rd Marquess of Londonderry, relating to Co. Down elections
    D3030/MM Miscellaneous papers of Lady Londonderry
    D3030/N Letters, mainly to Castlereagh and to [his half-brother], General Charles William Stewart
    D3030/NN Letters in French from the Tsar Alexander I to Frances Anne, Lady Londonderry
    D3030/P Letters and copy letters, mainly from Sir Charles Stewart, afterwards Lord Stewart, to his half-brother, Lord Castlereagh
    D3030/PP Copy letters and journal in Lady Londonderry’s writing
    D3030/Q Typescript copy letters, among members of the Stewart family or between members of the Stewart and Pratt families
    D3030/QQ ‘Extracts’ from a fictitious newspaper called ‘The Wynward Weekly Post’, written by Sir Henry Browne
    D3030/R Volume containing minutes of two meetings of the committee of the 1st and 2nd volunteer companies of Newtownards
    D3030/RR Bound history of the Vane-Tempest family, including some related original letters
    D3030/S Newspaper cuttings relating to Castlereagh’s career
    D3030/T Typescript letters between Emily, Viscountess Castlereagh and Lord Stewart, on the one hand, and her husband on the other

Conditions of Access & Use

Access Conditions The collection can be consulted in the reading room in PRONI in accordance with PRONI guidelines.
Conditions Governing ReproductionItems may be copied for personal research use only. If a researcher wishes to publish any documents from this collection, a request must be submitted in writing to the Public Record Office of Northern Ireland.
Creation Dates1697-1847
Extent Mediumc 7,450 documents + c 40 volumes
Material Language ScriptEnglish
Finding Aids A full descriptive list is available to search online at: Archive Web Link →

Allied Materials

Copies InformationThe records are available on microfilm at PRONI: MIC 570
Related MaterialFurther related material is held in PRONI: D654 Londonderry papers D665 Blessington papers D714 Letters and Papers relating to Rev. John Cleland and the Provincial Committee of the Society of United Irishman D3232 Additional Cleland papers D1088 Papers of Rev. Mark Cassidy, Newtownard, Co. Down D2846 Theresa, Lady Londonderry papers D2977 Earl of Antrim Estate papers D3084/C 'The Londonderrys' section within H. Montgomery Hyde papers D3099 Papers of the 7th Marquess of Londonderry and his wife Edith Helen D4127 Political and personal papers of Sir James Alexander Kilfedder MP D2784/19 Additional Stewart-Bam Estate papers

Descriptive Control Area

Archivist NotePRONI Archivist
Rules/ConventionsISAD(G): General International Standard Archival Description. 2nd ed. Ottawa: International Council on Archives, 2000. National Council on Archives: Rules for the Construction of Personal, Place and Corporate Names. Chippenham: National Council on Archives, 1997. UK Archival Thesaurus (UKAT)
Date of Descriptions41699