Daniel Sickles
| Daniel Sickles | |
|---|---|
| Major General Sickles c. 1862 | |
| Member of the U.S. House of Representatives from New York | |
| In office March 4, 1893 – March 3, 1895 | |
| Preceded by | William Bourke Cockran | 
| Succeeded by | Amos J. Cummings | 
| Constituency | 10th district | 
| In office March 4, 1857 – March 3, 1861 | |
| Preceded by | Guy R. Pelton | 
| Succeeded by | Benjamin Wood | 
| Constituency | 3rd district | 
| 19th United States Minister to Spain | |
| In office May 15, 1869 – January 31, 1874 | |
| President | Ulysses S. Grant | 
| Preceded by | John P. Hale | 
| Succeeded by | Caleb Cushing | 
| Member of the New York Senate from the 3rd district | |
| In office January 1, 1856 – March 3, 1857 | |
| Preceded by | Thomas J. Barr | 
| Succeeded by | Francis B. Spinola | 
| Personal details | |
| Born | Daniel Edgar Sickles October 20, 1819 New York City, U.S. | 
| Died | May 3, 1914 (aged 94) New York City, U.S. | 
| Resting place | Arlington National Cemetery | 
| Political party | Democratic | 
| Spouses | |
| Children | 3 | 
| Nickname | "Devil Dan" | 
| Military service | |
| Allegiance | United States Union | 
| Branch/service | United States Army Union Army | 
| Years of service | 1861–1869 | 
| Rank | Major general | 
| Commands | Excelsior Brigade III Corps | 
| Battles/wars | |
| Awards | Medal of Honor | 
Daniel Edgar Sickles (October 20, 1819 – May 3, 1914) was an American politician, Civil War veteran, and diplomat. He served in the U.S. House of Representatives both before and after the war.
Sickles was involved in a number of scandals, most notably the 1859 homicide of his wife's lover, U.S. Attorney Philip Barton Key II. He was acquitted after using temporary insanity as a legal defense for the first time in United States history.