Cornelius O'Callaghan, 1st Viscount Lismore
Cornelius O'Callaghan , 1st Viscount Lismore PC ( I ) ( 2 October 1775 – 30 May 1857 ) was an Irish Whig politician . 
<triplet> Cornelius O'Callaghan, 1st Viscount Lismore <subj> 2 October 1775 <obj> date of birth <subj> 30 May 1857 <obj> date of death