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I want to print some labels fir my library collection. I want to roughly say, “From the books of the family of Dario Mazzola” in Latin. Is “EX LIBRIS DE COGNATIONE DARIO MAZZOLA” correct? Thanks

"Cognatio" would comprise a whole clan, while "familia" is less comprehensive (centered around a pater familias).

The use of "de" is possible, but in Classical Latin I think a genitive would be preferred (cognationis or familiae), and following that, the genitive of the person's name would be something like Darionis Mazzolae.

Iversen wrote:but in Classical Latin I think a genitive would be preferred (cognationis eller familiae)

Makes me think of this: