page_title: William Ponsonby, 1st Baron Ponsonby
section_title: Family
hierarchical_section_title: William Ponsonby, 1st Baron Ponsonby / Family
caption_attribution_description: English: Louisa, Baroness Ponsonby of Imokilly (1749-1824) frame engraved with 'Louisa Wife of William, 1st.. Baron Ponsonby of Imokilly . Born 1749, Married 1769, Died 1824.', reverse engraved with 'Daughter of Richard 3rd.. Viscount Molesworth, Mother of Mary Elizabeth. Countess Grey, Lady Ponsonby by E.C.'
context_page_description: William Brabazon Ponsonby, 1st Baron Ponsonby, PC was a leading Irish Whig politician, being a member of the Irish House of Commons, and, after 1800, of the United Kingdom parliament. Ponsonby was the son of the Hon. John Ponsonby, the Speaker of the Irish House of Commons and Lady Elizabeth Cavendish, daughter of the 3rd Duke of Devonshire. He was invested as a Privy Counsellor of Ireland in 1784. He served as Joint Postmaster-General of Ireland.
context_section_description: In 1769 Ponsonby married Louisa Molesworth (1749–1824), 4th daughter of the 3rd Viscount Molesworth, and his second wife, Mary Usher.  They had five sons, four of whom were men of note and one daughter.
  John Ponsonby, 1st Viscount Ponsonby, was a diplomat
  Hon. Sir William Ponsonby, a major-general in the army was killed at the Battle of Waterloo
  Richard Ponsonby, became bishop of Killaloe and Kilfenora in 1828, Derry in 1831 and Derry and Raphoe in 1834;
  George Ponsonby was a Member of Parliament and Junior Lord of the Treasury.
  Mary was married to the Prime Minister, Charles Grey, 2nd Earl Grey.
  Ponsonby's descendants include Edward Wood, 1st Earl of Halifax, Sir Alec Douglas-Home and Prince William of Wales.
caption: Louisa, Baroness Ponsonby of Imokilly (1749–1824)
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