Servius, in his note on Aeneid 1.10, has a very straightforward, no-frills, useful definition of what it means for Aeneas to be insignem pietate: quia

Late in Book 1 of In Rufinum, Claudian describes the Huns: Est genus extremos* Scythiae vergentis in ortus trans gelidum Tanain, quo non famosius ullu