Seamus Costello | |
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Séamus Mac Coisdealbha | |
![]() Costello during a December 1975 interview with RTÉ | |
Wicklow County Councillor | |
In office March 1967 – October 1977 | |
Constituency | Bray |
Bray Urban District Councillor | |
In office 1977–1967 | |
Personal details | |
Born | 1939 Old Connaught Avenue, Bray, County Wicklow, Ireland |
Died | 5 October 1977 (aged 37 or 38) North Strand, Dublin, Ireland |
Manner of death | Assassination by gunshot |
Political party | Irish Republican Socialist Party |
Other political affiliations | Sinn Féin (1955–1970) Official Sinn Féin (1970–1974) |
Spouse | Maeliosa Costello |
Children | 4 |
Nickname | The Boy General |
Military service | |
Branch/service |
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Rank |
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Battles/wars | |
Seamus Costello (Irish: Séamus Mac Coisdealbha, 1939 – 5 October 1977) was an Irish politician. He was a leader of Official Sinn Féin and the Official Irish Republican Army and latterly of the Irish Republican Socialist Party (IRSP) and the Irish National Liberation Army (INLA).
He argued for a combination of socialist politics on economic issues and traditional physical force Irish republicanism. He is best remembered for the founding of the IRSP and the INLA. He was a victim of a feud with his former comrades in the Official IRA.