Marches of Neustria

The subsidiary counts of Neustria had exceeded the margrave in power by that time and the peak of Viking and Breton raiding had passed.

Although its exact extent is unknown and its boundaries do not coincide with the later Breton March; it included the Rennais and Nantais territories (French: pays), and parts of the Vannetais and Maine.

Administration centered in Le Mans and the territory eventually went by the name of ducatus Cenomannicus or Duchy of Maine.

The Carolingian king of the Franks, Charles the Bald, re-created the Breton March in 861 and appointed Robert the Strong margrave.

They intrigued against him and his relatives, also powerful nobles in the region, until Charles revoked his grants to them and placed the Rorgonids at the head of the March.

In 885, Charles the Fat came to power in West Francia and named Henry of Franconia margrave of the Norman March.