 On 16 March 1856, after a two-day labor that endangered mother and child and from which Eugénie made a very slow recovery, the empress gave birth to an only son, Napoléon Eugène Louis Jean Joseph Bonaparte, styled "Prince Impérial".After marriage, it didn't take long for her husband to stray as Eugénie found sex with him "disgusting".It is doubtful that she allowed further approaches by her husband once she had given him an heir.