Tanais
City
Tanais was an ancient Greek city in the Don river delta, called the Maeotian marshes in classical antiquity. It was a bishopric as Tana and remains a Latin Catholic titular see as Tanais. Wikipedia
Founded: Late 3rd century BC
Coordinates: 47°16′8″N 39°20′6″E / 47.26889°N 39.33500°E
Location: Nedvigovka, Rostov Oblast, Russia
Region: Maeotian marshes