Genealogy research by Mark Humphrys,
Richard Fitzwilliam, 7th Viscount Fitzwilliam (see here),
had a long-standing affair with Anne Bernard
[a French dancer, who used the stage name "Mademoiselle Zacharie"].
He had two sons with her, Fitzwilliam and Billy, though he never married her, and so the title went to his aged brother rather than his sons.
The Fitzwilliam Museum has letters from her, which show her as poorly educated.
He was a great lover of France,
fluent in French,
and a supporter of the French Royalists after the
French Revolution 1789.
His house at Richmond Green was a centre for exiled French nobles and Royalists who had fled the French Revolution to England.
Fellow of Royal Society 1789.
MP for Wilton 1790-1806. (Wilton was home of his 1st cousin the 10th Earl of Pembroke.)
continued the development of Georgian SE Dublin.
Act for enclosing centre of Merrion Square 1791.
Fitzwilliam Square designed from 1789, laid out 1792.
author of the book:
(or: Considerations sur la religion catholique et le protestantisme
par un Anglois protestant),
published in French in
which showed considerable sympathy for Catholicism.
He built the new Catholic church at Booterstown for his Catholic tenants in 1812.
Act for enclosing centre of Fitzwilliam Square 1813.
The Fitzwilliam estate becomes the Pembroke estate:
On his death in 1816 the 7th Viscount left his vast estates in Ireland to his 1st cousin's son, the 11th Earl of Pembroke (succ 1794, died 1827).
Although he had two brothers, they were ageing, with no sons (they were also said to have been feeble-minded), and it was clear that the Viscounts Fitzwilliam were dying out, so he decided to dispose of the estate before his death.
Apparently he considered leaving his estates to the 4th Earl Fitzwilliam (succ 1756, died 1833), who, although his family had been involved with Ireland for centuries, and had regarded the 7th Viscount's family as kinsmen, was no proven relation at all. (Actually, they were obscurely related through Shelley, but he may not have even known this.)
The story goes that the 7th Viscount was appalled by the Earl Fitzwilliam's manners in drinking tea, and resolved in favour of Pembroke. (Maybe it was the young future 5th Earl Fitzwilliam that he had for tea.)
The 7th Viscount spent a lifetime collecting works of art and other treasures,
and decided to leave them all
(and many Fitzwilliam family portraits)
to the Cambridge that he had always loved.
This founded the Fitzwilliam Museum, Cambridge 1816, starting its extensive collection.
His will dated 18 Aug 1815.
He died unmarried, 4th Feb 1816, Bond Street, London, age 70 yrs.
Letter by Horace Walpole, from Berkeley Square, London, Wed 8 June 1791.
Shows the 7th Viscount planning an incredibly quick trip to Ireland, to leave Mon 6 June.
From Letters of Horace Walpole, vol.9 (and here), p.323.
The "exiles" refer to exiled French nobles and Royalists, who had fled the French Revolution to England. Many of the French exiles lived in Richmond.
Follow-up letter by Walpole, from Strawberry Hill, 23 June 1791, showing the 7th Viscount has already been to Ireland and back.
From above, p.328.
A building called "Fitzwilliam House" on Little Green, to the NE side of the main Richmond Green. See map.
Harold Wilson (later Prime Minister) lived here in the 1940s.
It is now apartments.
Photo 2011 by Maxwell Hamilton. Creative Commons.
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