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.
North Germanic peoples
In the late 8th century North Germanic tribes embarked on a massive expansion in all the directions. This was the start of the Viking Age, which lasted until 1066 AD. This expansion is considered the last of the great North Germanic migrations. These seafaring traders, settlers and warriors are commonly referred to as "Vikings". The North Germanic peoples of the Viking Age as a whole were typically referred to as Norsemen.