Ardotalia, commonly known as Melandra Castle, was an auxiliary Roman fort situated on a bluff above the confluence of the Etherow and Glossop Brook in northwest Derbyshire. It was established around AD 75–80 during the Flavian advance into the Pennines, rebuilt in stone in the early 2nd century, and abandoned by around AD 140, after which the garrison was likely shifted to the Antonine frontier. The fort covered roughly 1.6 hectares (about 4 acres), a standard size for a quingenary auxiliary cohort.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
Ardotalia formed part of the network of forts controlling the Pennine fringe and the trans-Pennine routes, linked to Brough-on-Noe (Navio) to the east and Manchester (Mamucium) to the west. An altar inscription records the presence of the First Cohort of Frisiavones, a Germanic auxiliary unit, attesting its role in garrisoning the upland fringes of Brigantian territory.
Excavations by Conway in 1899–1906 and later work by Manchester University in the 1960s–70s revealed the stone defences, gates, principia, and elements of a substantial extramural vicus to the south, including timber buildings and industrial activity. Finds include the inscribed centurial stone of Valerius Vitalis, altars, and pottery consistent with a late 1st- to mid-2nd-century occupation.
Ardotalia, commonly known as Melandra Castle, was an auxiliary Roman fort situated on a bluff above the confluence of the Etherow and Glossop Brook in northwest Derbyshire. It is recorded in the Pleiades gazetteer of ancient places as a fort site from the Roman period in Britain.
Ardotalia (Zerdotalia) is classified as a Roman fort — a military site in the Pleiades ancient world gazetteer. Roman Britain's archaeology encompasses thousands of sites ranging from legionary fortresses and marching camps to villas, temples and towns.
Several Roman sites lie within a short distance, including Roman fortlet 320m east of Highstones (6.8 km), Marple aqueduct (7.3 km), Rigodounon? (14.6 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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