Dido 5

DIDO

Anna soror, quae me suspensam insomnia terrent!
quis novus hic nostris successit sedibus hospes,
quem sese ore ferens, quam forti pectore et armis!
credo equidem, nec vana fides, genus esse deorum.

I truly believe, nor is it an empty belief, him to be the offspring of the gods, or I truly believe… his descent to be of the gods. 

Credo genus esse…: I believe his descent to be… This is a perfect example of the accusative and infinitive construction, one of the most typical features of Latin syntax.