When his elder (half-)brother Jean-Louis d'Orléans joined the Jesuits in 1668, Charles inherited the titles of Duke of Longueville and Count of Saint-Pol as the second son.
Charles Paris of Longueville participated in the War of Devolution in Flanders and Franche-Comté, and by the end of 1668 in the unsuccessful attempt to lift the Siege of Candia against the Turks.
This irresponsible act led to a firefight with the Frisian prisoners, apparently not yet fully disarmed, in which Charles Paris, as the instigator of the event, was killed.
[1][2] Although unmarried, Charles of Longueville had in 1670 a bastard son with Madeleine d'Angennes, wife of Marshal Henri de La Ferté-Senneterre.
Some years before his death, François de Callières had been working to make Charles Paris eligible for the vacant Polish crown, which in 1669 fell to his main competitor, Michał Korybut Wiśniowiecki.