North Germanic peoples
Vikings were also active in Francia. Some of these Vikings would sail through the Strait of Gibraltar and pillage the coasts of the Mediterranean Sea. In the early 10th century, a group of Vikings under the leadership of Rollo settled in Rouen, France, and established the Duchy of Normandy. The descendants of these Vikings, known as the "Normans", would in the 11th century conquer England, Southern Italy, and North Africa, and play a leading role in launching the Crusades. Sub-groups of the Normans include Anglo-Normans, Scoto-Normans, Cambro-Normans, Hiberno-Normans and Italo-Normans.
Viking art
The Vikings initially employed their longships to invade and attack European coasts, harbours and river settlements on a seasonal basis. Subsequently, Viking activities diversified to include trading voyages to the east, west and south of their Scandinavian homelands, with repeated and regular voyages following river systems east into Russia and the Black and Caspian Sea regions, and west to the coastlines of the British Isles, Iceland and Greenland. Evidence exists for Vikings reaching Newfoundland well before the later voyages of Christopher Columbus discovered the New World.