William FitzGerald, 2nd Duke of Leinster
William Robert FitzGerald, 2nd Duke of Leinster, KP, PC (Ire) (12/13 March 1749 – 20 October 1804) was an Anglo-Irish liberal and landowner.
Also recorded as William Leinster
William FitzGerald, 2nd Duke of Leinster

Gilbert Stuart · Christie's, LotFinder: entry 5324474 · Public domain
- Name
- The Duke of Leinster
- Born
- 12 March 1749
- Birthplace
- London, Great Britain
- Died
- 20 October 1804 March 1749
- Place of death
- Carton, Ireland
- Nationality
- Ireland.
- Occupation
- politician, poet and aristocrat.
- Education
- Eton College.
- Honours
- Order of St Patrick.
- Languages
- Irish.
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Documentary summary
William Robert FitzGerald, 2nd Duke of Leinster, KP, PC (Ire) (12/13 March 1749 – 20 October 1804) was an Anglo-Irish liberal and landowner.
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Authority files
wikidata · Q4020003 · wikipedia · William FitzGerald, 2nd Duke of Leinster
In this article
Biography
Biography
William FitzGerald, 2nd Duke of Leinster studied at Eton College. The recorded working language is Irish. Positions recorded include Member of Parliament in the Parliament of Ireland and Member of the Privy Council of Ireland. Distinctions recorded are Order of St Patrick.

William FitzGerald, 2nd Duke of Leinster, William Robert Fitzgerald, 2nd Duke of Leinster P6766
John Dixon, Irish, c.1740-1811 After Joshua Reynolds, English, 1723-1792 · http: onlinecollection.nationalgallery.ie/objects/605/william-robert-fitzgerald-2nd-duke-of-leinster-17491804
Key facts
Key facts
• Honorific Prefix — His Grace • Name — The Duke of Leinster • Honorific Suffix — KP PC (Ire) • Office1 — Master of the Rolls in Ireland • Term Start1 — 1788 • Term End1 — 1789 • Predecessor1 — Richard Rigby • Successor1 — * The Earl of Glandore • The Earl of Carysfort • Office2 — Clerk of the Crown in Ireland • Term Start2 — 1795 • Term End2 — 1797 • Predecessor2 — Sir Lucius O'Brien • Successor2 — Lord Glentworth • Office3 — Member of the House of Lords Lord Temporal • Term Start3 — 19 November 1773 • Term End3 — 20 October 1804 Hereditary Peerage • Predecessor3 — James FitzGerald, 1st Duke of Leinster • Successor3 — Augustus FitzGerald, 3rd Duke of Leinster • Office4 — Member of Parliament for Dublin City • Term Start4 — 1767 • Term End4 — 1773 • Office5 — Member of Parliament for Kildare Borough • Term Start5 — 1768 • Term End5 — 1769 • Born — 12 March 1749 • Birthplace — London, Great Britain • Died — 20 October 1804 March 1749 • Place of death — Carton, Ireland • Parents — * James FitzGerald, 1st Duke of Leinster • Lady Emily Lennox • Children — * Lady Mary Lockhart-Ross • Lady Emily FitzGerald • Lady Elizabeth Baker • George FitzGerald, Marquess of Kildare • Cecilia Foley, Baroness Foley • Olivia Kinnaird, Baroness Kinnaird • Augustus FitzGerald, 3rd Duke of Leinster • Lord William FitzGerald • Isabella Charlotte de Rohan-Chabot, Comtess de Jarnac • Allegiance — Ireland • Branch — Irish Volunteers • Rank — Colonel • Unit — Dublin Volunteers
Career
Career
FitzGerald made his Grand Tour between 1768 and 1769. During the same time, he also was Member of Parliament (MP) for Kildare Borough. FitzGerald then sat in the Irish House of Commons for Dublin City until 1773, when he inherited his father's title and estates. He was appointed High Sheriff of Kildare for 1772. Politically he was a liberal supporter of Henry Grattan's Irish Patriot Party and he co-founded the Irish Whig Club in 1789. He controlled about six Kildare members of the Irish House of Commons. In 1779, he was elected colonel of the Dublin Regiment of the Irish Volunteers. In 1770, FitzGerald was chosen Grandmaster of the masonic Grand Lodge of Ireland, which post he held for two years. He was re-elected for another year in 1777. In 1783 he was among the first knights in the newly created Order of St. Patrick. In 1788–9, he was Master of the Rolls in Ireland; in theory a senior judicial office, it was then largely a sinecure, but so blatant a choice of a man who was wholly unqualified for it gave rise to unfavourable comment, and a few years later it became the rule that the Master must be a lawyer of repute. FitzGerald was a supporter of Catholic emancipation and helped to found the Catholic seminary at Maynooth on land he donated, in 1795. Withdrawing from Parliament with Grattan in 1797, he moved to England to be with his sick wife and remained there during the 1798 rebellion.
Family
Family
• Illustration — Emilia Olivia St George, the Duchess of Leinster (Hugh Douglas Hamilton) He was the second, but eldest surviving, son of James FitzGerald, 1st Duke of Leinster, and the well-connected Lady Emily Lennox, daughter of the 2nd Duke of Richmond. He was also the elder brother of the 1790s revolutionary Lord Edward FitzGerald, and was a first cousin of the English liberal politician Charles James Fox. On 4 or 7 November 1775 he married The Hon. Emilia Olivia Usher St George (died 23 June 1798, London), daughter of The 1st Baron Saint George and Elizabeth Dominick and sole grand daughter of Sir Christopher Dominick. Their children were: • Lady Mary Rebecca FitzGerald (6 May 1777 – 28 September 1842). Married 15 April 1799, Sir Charles Lockhart-Ross, 7th Baronet. • Lady Emily Elizabeth FitzGerald (13 May 1778 – 9 February 1856). Married 13 March 1801, John Joseph Henry of Straffan. • Lady Elizabeth FitzGerald (1780 – 28 February 1857). Married 22 July 1805, Sir Edward Baker, 1st Baronet. • George FitzGerald, Marquess of Kildare (20 June 1783 – 10 February 1784). • Lady Cecilia Olivia Geraldine FitzGerald (3 March 1786 – London, 27 July 1863). Married 18 August 1806, Thomas Foley, 3rd Baron Foley. • Lady Olivia Letitia Catherine FitzGerald (9 September 1787 – 28 February 1858). Married 8 May 1806, Charles Kinnaird, 8th Baron Kinnaird. • Augustus FitzGerald, 3rd Duke of Leinster (1791 – 1874). Married Lady Charlotte Augusta Stanhope. • Lord William Charles O'Brien FitzGerald (4 January 1793 – 8 December 1864). Married and had issue: • Geraldine Sydney FitzGerald (died 1896). Married 2 October 1855, Henry William Paget Butler. • Lady Isabella Charlotte FitzGerald (died 1868). Married 1 June 1809, Major-General Louis Guy Charles Guillaume de Rohan-Chabot, Comte de Jarnac. Had issue: • Philippe-Ferdinand-Auguste de Rohan-Chabot (1815-1875). Comte de Jarnac. His homes were at Carton, where he died, and Kilkea in County Kildare, and at Leinster House in Dublin (now the home of the Oireachtas). He was a founder member of the Order of St Patrick in 1783 and of the Royal Irish Academy (1785), and was a large investor in the Royal Canal company launched in 1790. His family's estates of 60,000 acres (25,000 Ha) in Kildare were in three main parts, around Maynooth, Rathangan and Athy. He rebuilt the main bridge in Athy over the River Barrow.
Identity and origins
Identity and origins
The authorities additionally record the heading William Leinster. His recorded language was Irish. He was the child of James FitzGerald, 1st Duke of Leinster and Emily FitzGerald, Duchess of Leinster. He married Emilia St. 4 children are recorded: Augustus FitzGerald, 3rd Duke of Leinster, Isabella Charlotte de Rohan-Chabot, William Fitzgerald and Lady Elizabeth FitzGerald. Within the Encyclopedia. Connected to 1 other published record in the VALÉORINE Encyclopedia.
Identity
Identity
William FitzGerald, 2nd Duke of Leinster is recorded with the occupation politician. Recorded as politician, poet and aristocrat.
Life and career
Dated record
Life and career
The full dated record · 2 entries
1749
William FitzGerald, 2nd Duke of Leinster was born on 13 March 1749.
1804
William FitzGerald, 2nd Duke of Leinster died on 20 October 1804.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
William FitzGerald and 2nd Duke of Leinster was born at London.
Birthplace
William FitzGerald and 2nd Duke of Leinster died at Dublin.
Deathplace
London.
Birth place
Dublin.
Death place
Primary material
Documents and archives
reference work
- “William FitzGerald, 2nd Duke of Leinster”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q4020003: William FitzGerald, 2nd Duke of Leinster
General reference · Wikidata
Citations
References
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reference work
“William FitzGerald, 2nd Duke of Leinster”, English Wikipedia, consulted as further readingWikipedia
Secondary witnessauthority record
General reference
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 17 August 2026.
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