Plural of 'Brutus'

[Brutus]

If I'm correct, the family name of Brutus actually was Junius (So I guess 'Gens Junia'), like the Scipio family name was Cornelius in real life. The word 'Brutus' was more of a hereditary honorary title, or something like that...

[Kraxis]

But many more than the Scipios were Cornelians. The Cornelians were more of an extended clan rather than a family. Though they did have a sort of common feeling.