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His Grace
The Duke of Leinster
KP PC (Ire)
His Grace The Duke of Leinster KP PC (Ire)
	The Duke of Leinster, by Gilbert Stuart
Master of the Rolls in Ireland
	In office; 1788–1789
Preceded by	Richard Rigby
Succeeded by	The Earl of Glandore; The Earl of Carysfort;
Clerk of the Crown in Ireland
	In office; 1795–1797
Preceded by	Sir Lucius O'Brien
Succeeded by	Lord Glentworth
Member of the House of Lords; Lord Temporal
	In office; 19 November 1773 – 20 October 1804; Hereditary Peerage
Preceded by	James FitzGerald, 1st Duke of Leinster
Succeeded by	Augustus FitzGerald, 3rd Duke of Leinster
Member of Parliament for Dublin City
	In office; 1767–1773
Member of Parliament for Kildare Borough
	In office; 1768–1769
Personal details
Born	12 March 1749; London, Great Britain
Died	20 October 1804 (aged 55); Carton, Ireland
Spouse	Emilia Olivia St George (m. 1775; died 1798)
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;
Parents	James FitzGerald, 1st Duke of Leinster; Lady Emily Lennox;
Military service
Allegiance	Kingdom of Ireland
Branch/service	Volunteers
Rank	Colonel
Unit	Dublin Volunteers

William Robert FitzGerald, 2nd Duke of Leinster, KP, PC (Ire) (12/13 March 1749 – 20 October 1804) was an Irish liberal politician and landowner. He was born in London.

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.^[1] He was re-elected for another year in 1777.^[1] In 1783 he was among the first knights in the newly created Order of St. Patrick.^[2]

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

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.

Ancestors of William FitzGerald, 2nd Duke of Leinster

16. George FitzGerald, 16th Earl of Kildare

8. Robert FitzGerald

17. Joan Boyle

4. Robert FitzGerald, 19th Earl of Kildare

18. James Clotworthy

9. Mary Clotworthy

19. Mary Rowley

2. James FitzGerald, 1st Duke of Leinster

20. William O'Brien, 2nd Earl of Inchiquin

10. William O'Brien, 3rd Earl of Inchiquin

21. Margaret Boyle (niece of 17)

5. Mary O'Brien

22. Edward Villiers

11. Mary Villiers

23. Frances Howard

1. William FitzGerald, 2nd Duke of Leinster

24. Charles II of England and Scotland

12. Charles Lennox, 1st Duke of Richmond

25. Louise de Kérouaille, Duchess of Portsmouth

6. Charles Lennox, 2nd Duke of Richmond

26. Francis Brudenell, Baron Brudenell

13. Anne Brudenell

27. Frances Savile

3. Emily Lennox

28. Henry Cadogan

14. William Cadogan, 1st Earl Cadogan

29. Bridget Waller

7. Sarah Cadogan

30. Joannes Munter

15. Margaret Cecilia Munter

31. Marguerite Trip

Notes

^ ^a ^b Waite, Arthur Edward (2007). A New Encyclopedia of Freemasonry. Vol. I. Cosimo, Inc. p. 400. ISBN 978-1-60206-641-0.
^ Cook, C. & Stevenson, J. (1980) British Historical Facts 1760−1830. London and Basingstoke: The Macmillan Press, p. 45.

Parliament of Ireland
Preceded by James Grattan Charles Lucas	Member of Parliament for Dublin City 1767–1773 With: Charles Lucas 1767–1771 William Clement 1771–1773	Succeeded by William Clement Redmond Morres
Preceded by Henry Sandford Garret FitzGerald	Member of Parliament for Kildare Borough 1768–1769 With: Maurice Keating	Succeeded by Simon Digby Joseph Henry
Masonic offices
Preceded by The Earl of Kingston	Grandmaster of the Grand Lodge of Ireland 1770–1772	Succeeded by Viscount Dunluce
Preceded by The Earl of Mornington	Grandmaster of the Grand Lodge of Ireland 1777–1778	Succeeded by The Earl of Antrim
Legal offices
Preceded by Richard Rigby	Master of the Rolls in Ireland 1788–1789	Succeeded by The Earl of Glandore and The Earl of Carysfort (joint)
Preceded by Sir Lucius O'Brien, Bt	Clerk of the Crown and Hanaper 1795–1797	Succeeded by The Lord Glentworth
Peerage of Ireland
Preceded by James FitzGerald	Duke of Leinster 1773–1804	Succeeded by Augustus FitzGerald