John Anthony Fonblanque

John Anthony Fonblanque (12 June 1759 – 4 January 1837) was an English politician and barrister.
Early life and name.
Born John Anthony Fonblanque, he was the son of Jean de Grenier de Fonblanque, a banker, naturalised as Jean Fonblanque, 
He was educated at Harrow School and Oxford. In 1828, late in life, he changed his surname by royal licence to de Grenier Fonblanque. He was descended from a Huguenot family, his father having exchanged the surname de Grenier de Fonblanque for that of Fonblanque on his naturalisation in England.
Career.
Called to the bar at the Middle Temple, 24 January 1783, Fonblanque distinguished himself in 1791 as leading counsel at the bar of the House of Commons on behalf of the merchants of London in opposition to the Quebec bill.
Fonblanque was the author of the very extensive notes forming the useful body of the standard legal work, "Treatise on Equity" nominally ascribed to Henry Ballow. First published in 1792, the fifth edition appeared in 1820.
He was Member of Parliament (MP) for the borough of Camelford 1802–1806 as a member of the Whig party following members of his wife's family, Samuel Martin and Sir Ralph Payne. Financial troubles brought an end to his political career by 1810.
He was one of the Whig "friends" of King George IV when Prince of Wales and is also said to have been a personal friend of his Royal Highness. He is supposed to have written the celebrated letters to the King on the subject of his Royal Highness's exclusion from the army which were generally attributed to Lord Moira.
Made King's Counsel on 28 April 1804, his brilliant early reputation meant he was spoken of as a future Whig Lord Chancellor. Vanity led Fonblanque into debt in 1807–08, and money problems, his wife left him in 1834, remained with him and his family the rest of his life. In later years he withdrew a great deal from the profession. It was said that Lord Eldon hearing that his library was to be sold purchased it and presented it to him.
Family.
John Anthony Fonblanque died on 4 January 1837 in his 77th year, still confined to the area just outside the debtors' prison, retaining his faculties to the last and "with perfect resignation".
On 30 May 1786, he married Frances Caroline Fitzgerald (1760–1844), sister of the poet William Thomas Fitzgerald and daughter of Colonel John Austen Fitzgerald and Henrietta Martin sister of Samuel Martin, and with her he was father of: