William Ponsonby, 1st Baron de Mauley (1787–1855), British Member of Parliament for Poole, Knaresborough and Dorset
William Shakespeare | William Laud | William Blake | William | William III of England | William Morris | William McKinley | William Howard Taft | William Ewart Gladstone | William the Conqueror | William S. Burroughs | William Shatner | William Faulkner | William Randolph Hearst | William Wordsworth | William Tecumseh Sherman | Baron | William Hogarth | Prince William, Duke of Cambridge | William Penn | William Jennings Bryan | William Gibson | Louis Mountbatten, 1st Earl Mountbatten of Burma | Horatio Nelson, 1st Viscount Nelson | Herbert Kitchener, 1st Earl Kitchener | William Wilberforce | William James | William Makepeace Thackeray | Fort William | William Hanna |
It is also possible that it was named in honour of any of several noted persons called Ponsonby, including the Postmaster General of Canada of 1784, William Ponsonby (1744-1806).
Grattan, Lord Charlemont, Ponsonby, Plunkett, and a few patriots, continued to protest against the sale of the liberties and free Constitution of Ireland.
Thus, if any is to blame in the short-lived 'Fitzwilliam episode' it is the great Irish politician Henry Grattan and the Ponsonby brothers - presumably William Ponsonby, later Lord Imokilly and his brother John Ponsonby—not to mention Lord Fitzwilliam himself.
William Ponsonby, 2nd Earl of Bessborough (1704–1793), British & Irish MP, Chief Secretary for Ireland, Postmaster-General of Great Britain
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William Ponsonby, 1st Baron Ponsonby (1744–1806), Member of Parliament for Bandonbridge and Kilkenny, Postmaster-General of Ireland
On 2 June 1759 Ponsonby left the Treasury and was appointed Postmaster General of Great Britain jointly with Robert Hampden-Trevor, 1st Viscount Hampden.