The Comte de Rochefort is a secondary fictional character in Alexandre Dumas' d'Artagnan Romances.
It is Rochefort who kidnaps Constance Bonacieux and it is eventually revealed that he is the other main agent, in addition to Milady de Winter, of Cardinal Richelieu.
At the end of the novel, Rochefort tries to arrest d'Artagnan for the cardinal; Richelieu eventually orders the men to become friends.
Unable to recognize his friend in the chaos, d'Artagnan kills Rochefort, as he had predicted he would if they fought a fourth time.
[2] Dumas combined the two, replacing an aristocrat named Rosnay from the d'Artagnan story with the Comte de Rochefort.