when Orberg (Livy?) says that Aeneas...ab Sicilia classe ad Laurentem agrum tenuisse.
Laurentem agrum means the district of the town of Laurentem - so I understand. But is 'Laurentem' an adjective? I get a bit confused here. Laurentem agrum is just two nouns...what do they literally mean? Is Laurentem qualifying 'agrum'....or is it just idiomatic 'Laurentem agrum'...?