- Born on August 31, 1781
- Deceased on May 16, 1847, at the age of 65 years
Parents
- Frederick Ponsonby (1758 - 1844), Earl of Bessborough
- Henrietta Frances Spencer (1761 - 1821)
Family
- Married on November 16, 1805, with Maria Fane (1787 - 1834), issuing
- John George Brabazon (1809 - 1880)
- William Wentworth Brabazon (1812 - 1831)
Augusta Lavinia Priscilla (1814 - 1904)- Frederick George Brabazon (1815 - 1885)
- George Arthur Brabazon (1820 - 1841)
- Walter William Brabazon (1821 - 1906)
- Spencer Cecil (1824 - 1915)
- Gerald Henry Brabazon (1829 - 1908)
- Maria Jane ( - 1897)
Occupations
- lord Privy Seal (1835 - 1840)
- home secretary
- privy counsellor
- lord-lieutenant
- member of parliament