Baron Radstock of Castletown in the Queen's County is in Baron Ireland.
In 1800 William Waldegrave 1st Baron Radstock [aged 46] was created 1st Baron Radstock of Castletown in the Queen's County.
On 20th August 1825 William Waldegrave 1st Baron Radstock [aged 72] died. His son Granville [aged 38] succeeded 2nd Baron Radstock of Castletown in the Queen's County.
On 11th May 1857 Vice-Admiral Granville Waldegrave 2nd Baron Radstock [aged 70] died. His son Granville [aged 24] succeeded 3rd Baron Radstock of Castletown in the Queen's County.
On 8th December 1913 Granville Waldegrave 3rd Baron Radstock [aged 80] died in Paris [Map]. His son Granville [aged 54] succeeded 4th Baron Radstock of Castletown in the Queen's County.
On 2nd April 1937 Granville Waldegrave 4th Baron Radstock [aged 77] died unmarried. His brother Montague [aged 69] succeeded 5th Baron Radstock of Castletown in the Queen's County.
On 17th September 1953 Montague Waldegrave 5th Baron Radstock [aged 86] died without male issue. Baron Radstock of Castletown in the Queen's County extinct.