Robert Cobb Kennedy | |
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 | |
| Born | October 25, 1835 Georgia, U.S |
| Died | March 25, 1865 (aged 29) Fort Lafayette, New York, U.S. |
| Cause of death | Execution by hanging |
| Allegiance |  Confederate States of America |
| Service/ |  Confederate States Army |
| Years of service | 1861–1865 |
| Unit | First Louisiana Regulars |
| Battles/wars | American Civil War |
Robert Cobb Kennedy (October 25, 1835 – March 25, 1865) was a Confederate operative who was hanged for his role in a failed plot to burn New York City during the American Civil War.