Northern March

The Northern March or North March () 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. Provided by Wikipedia