Chambré Brabazon Ponsonby married a second time on 23 October 1752, to Louisa, daughter of Henry Lyons of Belmont. They had one daughter, Sarah, who lived at Plas Newydd with Eleanor Butler (daughter of Walter Butler of Kilkenny Castle), where they were known as the Ladies of Llangollen. By his third wife, Mary, daughter of Sir William Barker, 3rd Baronet of Kilcooly Abbey, he was the father of Mary, who married Thomas Barton of Grove House, Fethard, and of Chambré Brabazon Ponsonby-Barker. Chambré Brabazon Ponsonby Chambré Brabazon Ponsonby (1720 – 20 February 1762) was an Irish Member of Parliament. He was the son
Maria Ponsonby, Viscountess Duncannon Maria Ponsonby, Viscountess Duncannon Maria Ponsonby, Viscountess Duncannon (11 May 1787 – 19 March 1834), formerly Lady Maria Fane, was the wife of John Ponsonby, 4th Earl of Bessborough. She died before he inherited the earldom and thus was never Countess of Bessborough, but three of her sons were successively earls of Bessborough. She was the daughter of John Fane, 10th Earl of Westmorland, and his first wife, the former Sarah Anne Child. Her brother was John Fane, 11th Earl of Westmorland, and her sisters were Sarah Villiers, Countess of Jersey (1785–1867), Lady Augusta Fane (1786–1871; later Lady Boringdon) and