John Ponsonby, 4th Earl of Bessborough

John William Ponsonby, 4th Earl of Bessborough, PC (31 August 1781 – 16 May 1847), known as Viscount Duncannon from 1793 to 1844, was a British Whig politician. He was notably Home Secretary in 1834 and served as Lord Lieutenant of Ireland between 1846 and 1847, the first years of the Great Famine.

John Ponsonby, 4th Earl of Bessborough

John William Ponsonby, 4th Earl of Bessborough, PC (31 August 1781 – 16 May 1847), known as Viscount Duncannon from 1793 to 1844, was a British Whig politician. He was notably Home Secretary in 1834 and served as Lord Lieutenant of Ireland between 1846 and 1847, the first years of the Great Famine.