Yes and no. Aristocracy can exist independent from fascism, and should be considered entirely separately. However, if they can't maintain power with a purely conservative/reactionary coalition, aristocrats will almost always side with fascists over liberals, much less socialists. As such, in the modern day, aristocracies are aligned with fascists, despite fascism erasing aristocracy as it 'succeeds' and aristocrats being generally aware that fascists do not have their aristocratic interests in mind.