Deletion of Carlo Barberini (1562–1630)

Comment: I can find him named in books (e.g. https://books.google.com/books?id=nWilBAAAQBAJ&pg=PA12&dq=carlo+barberini+monterotondo&hl=en&sa=X&ei=tSWHVfupHYTZoASAhqv4BQ&ved=0CD4Q6AEwBA#v=onepage&q=carlo%20barberini%20monterotondo&f=false https://books.google.com/books?id=KrPZXO55D10C&pg=PA368&dq=carlo+barberini+monterotondo&hl=en&sa=X&ei=tSWHVfupHYTZoASAhqv4BQ&ved=0CEUQ6AEwBQ#v=onepage&q=carlo%20barberini%20monterotondo&f=false, but never as a major personage. He appears to be best known as a member of the Barberini family, brother of a Pope (if I read this right), and father of some important players in the politics of the time. I don't know whether it's better to keep this or delete it, but it appears to me that if this were more recent we would be invoking  for this person
Stance: comment
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:NOTINHERITED)