A city of northern Bulgaria, located on a major crossing-point of the Danube, which began as a fortified Roman harbor called Sexantaprista (Sixty Ships) in the 1st century BC. It was destroyed by barbarians in the 7th century. The Ottomans built a new town Roustchouk which subsequently bore the names Cherven and Roussé. It is the site of a large tell of the Karanovo V-VI group (4th millennium BC) where 11 Copper Age occupation levels have been uncovered. Interspersed between house levels were over 100 intramural burials.