Bremenium

Bremenium (High Rochester) is an ancient Roman fort (castrum) located at Rochester, Northumberland, England. The fort is part of the defensive system built along the extension of Dere Street, a Roman road running from York to Corbridge and onwards to Melrose. Significantly the fort is a long way north of Hadrian's Wall. It was one of the last forts north of Hadrian's Wall to remain occupied until the 270s.

The fort's name, Bremenium, is mentioned in the Ravenna Cosmography, the Antonine Itinerary and Ptolemy's Geographia.

A separate Roman road ran eastwards from Bremenium to the Roman fort at Learchild, where it joined up with the Devil's Causeway Roman road to Berwick upon Tweed.

 Images sorce : https://en.wikipedia.org/wiki/Bremenium

Historical background

In 79 AD Agricola moved against the Brigantes of northern England and the Selgovae along the southern coast of Scotland, using overwhelming military power to establish Roman control.[1] He built a network of military roads and forts to secure the Roman occupation and Bremenium was built around 80 AD. Existing forts were strengthened and new ones planted in northeastern Scotland along the Highland Line, consolidating control of the glens that provided access to and from the Scottish Highlands. The line of military communication and supply across southeastern Scotland and northeastern England was Dere Street (on which Bremenium was located) which was well-fortified.

After Agricola was recalled from Britain in 84 AD the Romans retired to a more defensible line along the Forth–Clyde isthmus. In the 120s Hadrian established the frontier further south by building his wall, and Bremeniun remained outside it as an "outpost" fort.

The emperor Antoninus Pius advanced again in the 140s and built the Antonine Wall, when Bremenium once again became a supply and logistical waypoint on Dere Street until about 164 when Hadrian's wall became the frontier again leaving Bremenium in hostile territory.