. "Lord Bessborough" . "Frederick Ponsonby
3rd Earl of Bessborough" . . . . . "Frederick Ponsonby, Viscount Dungannon" . . . "3rd Earl of Bessborough" . . . . . "1758" . . . . . . . . . "Frederick Ponsonby, 3rd Earl of Bessborough" . "Frederick Ponsonby, Viscount Duncannon" . . "Bessborough" . "1758-01-24" . . . . "Frederick Ponsonby" . . . "the 3rd Earl of Bessborough" . . "Frederick Ponsonby, 3rd Earl of Bessborough" . . "1844-02-03" . . . . . . . . "third Earl of Bessborough" . . . . . "1844" . "The 3rd Earl of Bessborough" . "Viscount Duncannon" .