_Saturnus_ was the old Latin god of sowing, and was later identified with the Greek Kronos, father of Zeus.
XII.

'Albunea': apparently refers to a wooded hill with a sulphur spring.

Probably it refers to a shrine near some sulphur springs at Altieri, near Laurentum.
'Oenotria': originally the southern part of Lucania and Bruttium, but Virgil uses it poetically for the whole of Italy.
XIII.

See note on Book VI.

stanzas xvi.