Magic Man
Reaper of Conversation
The Normans were of Scandinavian origin, when Rollo led Norse Vikings and occupied the Frankish territory, in what we now call Normandy. The then French king, allowed Rollo and his men to stay as long as they accept his kingship in 911. So the Normans were given land, which became duchy. Despite this, Normandy was almost entirely independent kingdom, such was the strength of their army.
As to the language, the Normans spoke French but with Norman dialect. It was these Normans that entered and conquered England.
Please don't start this again. We already spent several pages on this particular topic.