Portus Adurni
Portus Adurni was a Roman fort in the Roman province of Britannia situated at the north end of Portsmouth Harbour.
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Portus Adurni
50.8381° N, -1.1150° E
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Portus Adurni was a Roman fort in the Roman province of Britannia situated at the north end of Portsmouth Harbour. It was part of the Saxon Shore, and is the best-preserved Roman fort north of the Alps. Around an eighth of the fort has been excavated. It was later converted into a medieval castle known as Portchester Castle.
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