"the murder of the Duc D'Enghien"

 Louis Antoine de Bourbon, Duke of Enghien (1772-1804) is best known for the circumstances of his death: Napoleon had him executed on the 21st March 1804 on invented charges of treason. He was related by birth to the ousted royal family, and as such was seen as a threat to the French Consulate. However, he was entirely innocent of plotting against Napoleon, and his murder was widely condemned; it caused Russia to cut off diplomatic relations with France.