The Roman road from Bath to Badbury Rings passes through the east of the parish. The situation of the village is similar to Romano-British sites in the area, and there may have been a military camp and trading post in the area. It is possible that Ashmore may have been a Romano-British village that has been occupied without a break up to the present day; the parish church is sited West of the pond towards the edge of the village, which could indicate that the village pre-dated the church and Christianity.