The Northern March or North March (German: Nordmark) was created out of the division of the vast Marca Geronis in 965. It initially comprised the northern third of the Marca (roughly corresponding to the modern state of Brandenburg) and was part of the territorial organisation of areas conquered from the Wends. A Lutician rebellion in 983 reversed German control over the region until the establishment of the March of Brandenburg by Albert the Bear in the 12th century. Slavic background. During the Migration Period, many Germanic peoples began migrating towards the Roman frontier.
https://en.wikipedia.org/wiki/Northern_March
The Northern March or North March (German: Nordmark) was created out of the division of the vast Marca Geronis in 965. It initially comprised the northern third of the Marca (roughly corresponding to the modern state of Brandenburg) and was part of the territorial organisation of areas conquered from the Wends. A Lutician rebellion in 983 reversed German control over the region until the establishment of the March of Brandenburg by Albert the Bear in the 12th century. Slavic background. During the Migration Period, many Germanic peoples began migrating towards the Roman frontier.
