In Marvão, gradual consolidation of Roman power led to the establishment of a substantial Roman town in the 1st century CE: Ammaia.[19] Occupying up to 25 hectares, and with a population exceeding modern-day Marvão (5000-6000 inhabitants), Ammaia occupied the site of the present-day parish of São Salvador da Aramenha. The town flourished between the 1st century BCE and the collapse of the Roman empire in the 5th century CE.[20]