The Carolingian dynasty was a Frankish noble family with origins in the Arnulfing and Pippinid clans of the century AD. The name "Carolingian" derives from the Latinised name of Charles Martel: Carolus
Map of Berlin wall - West Berlin was an exclave of West Germany. It belonged to West Germany but was geographically separated from the main part by the Soviet controlled surrounding East Germany. Basically, an island. I've been on both sides.