The Count of Lecce was murdered when he tried to seduce someone else's wife and her husband killed him for the insult. The young woman was innocent of any wrong doing. (Acton, the Last Bourbons of Naples, p. 143).
While Ferdinand II was the model of concupiscence his brothers were pretty disreputable, even the Count of Aquila who married well. Perhaps the best was Trapani, who was the only one who remaiend unswervingly loyal to Francis II, whose own brother, the Count of Trani betrayed him in a particularly odious fashion. They inherited their mother's liusts - after her husband's death she embarked on a series of affairs, the longest of which ended with her son expelling her lover, Baron von Schmuckler. She then secretly married the much younger Count Francesco del Balzo, with her son's private permission the marriage which took place on 15 Jan 1839 could not be given legal status in the Two Sicilies but was valid in canon law, so allowed her to enjoy a full relationship but not be excluded from the sacraments. He was sixteen years younger and outlived his wife by 34 years.