Sir Robert William O'Callaghan (1777-1840)
Irish military officer, the son of Cornelius O'Callaghan, first Baron Lismore of
Shanbally (1749-1797); he fought in the Peninsular War and commanded the troops in Scotland
(1825-30).
Irish military officer, the son of Cornelius O'Callaghan, first Baron Lismore of
Shanbally (1749-1797); he fought in the Peninsular War and commanded the troops in Scotland
(1825-30).