Opsikion
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The Opsician Theme or simply Opsikion was a Byzantine theme located in northwestern Asia Minor. Created from the imperial retinue army, the Opsikion was the largest and most prestigious of the early t
Signet ring of Leontios, patrikios and Count of the God-guarded imperial Opsikion
Bithynia
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Bithynia is a geographical region of northwestern Asia Minor, adjoining the Sea of Marmara, the Bosporus, and the Black Sea. It borders Mysia to the southwest, Paphlagonia to the northeast along the B
Opsikion
…themata). Thus the Opsician theme was the area where the imperial Opsikion was settled, which encompassed all of north-western Asia Minor (Mysia, Bithynia, parts of Galatia, Lydia and Paphlagonia) from the Dardanelles to the Halys River, with Ancyra as its capital. The exact date of the theme's establishment…
The Constantinople Gate in Nicaea