The infamous Vlad the Impaler had a half-brother named Vlad the Monk. Vlad the Monk was a nice guy. Nice Vlad eventually replaced Bad Vlad as Voivode of Wallachia and ruled well and long leaving the throne to his son.
Nice Vlad and Bad Vlad were both offspring of Vlad Dracul and either could have been called Dracula i.e. Son of Dracul.