I have grown the "Principe Borghese" for quite a while. Purchased the seeds from "Seeds of Italy" web site. Great little jewel, heavy producer, good flavor, very little juice. They are superb to dry, really intensifies the flavor. We enjoyed them even when it got too hot for the "San Marzano's" to produce much. They kept on until the frost came, I picked the green ones and let them ripen, we had some that didn't finish ripening until early December, tasted better than any from the store.