Medgidia is a city in Constanța County, Northern Dobruja, south-eastern Romania. Archaeological findings show that Dobruja was inhabited si…Medgidia is a city in Constanța County, Northern Dobruja, south-eastern Romania. Archaeological findings show that Dobruja was inhabited since the Neolithic period. Starting with 46 BC the region was administered by the Roman Empire. A castrum was built in the Carasu Valley, becoming the cradle of the settlement.