Ancient central Italy during the Roman period showing the location of present day Greve on the border of the provinces of Tuscia and Etruria. Greve is near Ad Aquileia (Equilia), a Roman way-station on the Via Cassia which is probably now the Castle of Mugnana. This way-station was not far from the intersection of the Via Cassia with the Via Maremmana at La Panca and the Castle of Cintoia.
(From a 1798 map)
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Pre-unification modern central Italy. Greve is indicated in the Grand Duchy of Tuscany.