From the Western Mail:

A SECOND Roman fort has been found in Monmouth, in what the town’s archaeological society describes as one of the most thrilling Roman discoveries in South-East Wales for many years.

Archaeologists have long known of the existence of a large, “vexillation” fort in the town centre, dating from about AD50, but excavations over the past 25 years have hinted at a smaller, later, second fort. Now its existence has been confirmed thanks to earthworks for a building on land owned by the chairman of Monmouth Archaeological Society, Steve Clarke.

The “auxiliary” fort may have housed up to 500 soldiers. It was built about AD100, after the Romans had suffered heavy casualties in a 30-year war against Welsh guerrillas. It may still have been occupied alongside the industrial town of Blestium (Roman Monmouth) in the 3rd century.