Children of the Devil — Valentina Luellen

Now you belong to me...only me!' Her husband spoke softly, menacingly, and Francesca quivered beneath his touch. She had been forced to marry Raoul, a man who represented everything she despised. But, unable to ignore her growing attraction for him, she soon found herself torn between a husband she loved passionately and a brother to whom she owed allegiance. Her new home--the decadent court of the ruthless Borgias--appalled her. She clung to her husband's professed love. With him she would be safe....How was Francesca to know she would be brutally betrayed!

Also publised as Francesca