Szeged III. In the second century AD there was a Roman trading post established on an island in the Tisza, and the foundations of the Szeged castle suggest that the structure may have been built over an even earlier fort. Today only one corner of the castle still remains standing. During the Mongol invasion the town was destroyed and its inhabitants fled to the nearby swamps, but they soon returned and rebuilt their town. In the 14th century, during the reign of Louis the Great, Szeged became the most important town of Southern Hungary, and – as the Turkish armies got
Nord-Pas-de-Calais frequently used by the inhabitants. With its 330.8 people per km on just over 12,414 km, it is a densely populated region, having some 4.1 million inhabitants, 7% of France's total population, making it the fourth most populous region in the country, 83% of whom live in urban communities. Its administrative centre and largest city is Lille. The second largest city is Calais, which serves as a major continental economic/transportation hub with Dover of Great Britain away; this makes Nord-Pas-de-Calais the closest continental European connection to the Great Britain. Other major towns include Valenciennes, Lens, Douai, Béthune, Dunkirk, Maubeuge, Boulogne,