Map of the regions of Italy © Clipart.com

These areas only approximately correspond with the following, since I don't have the key. The Aequi are in the area of the Marsi and there are many other overlaps. The black area is Latium where Rome is located.

1. Etruria
2. Liguria
3. Cisalpine Gaul
4. Venetia
5. Umbria
6. Picenum
7. Sabini
8. Marsi
9. Frentani
10. Samnium
11. Luceria
12. Campania
13. Lucania
14. Apulia
15. Calabria
16. Brutium