The Fragmentation of Middle Francia and the…

The Fragmentation of Middle Francia and the End of Viking Rule in Frisia (843–900)

Following the Treaty of Verdun (843), the Carolingian Empire is divided into three distinct kingdoms:

• West Francia → The precursor to modern France.
• East Francia → The precursor to modern Germany and Austria.
• Middle Francia → A weak and politically unstable kingdom stretching from Frisia in the north to Italy in the south, including the Low Countries.

Viking Control in Frisia (850–885)

• Around 850, Lothair I of Middle Francia, unable to defend his northern territories from Viking incursions, acknowledges Rorik of Dorestad, a Danish Viking leader, as ruler of most of Frisia in exchange for his nominal loyalty.
• When Middle Francia is partitioned in 855, the northern lands pass to Lothair II, forming Lotharingia.
• After Lothair II’s death in 869, Lotharingia is divided into Upper and Lower Lotharingia, with the Low Countries becoming part of East Francia in 870 (under the Treaty of Meerssen). However, despite this formal annexation, the region remains effectively under Viking control, as Frisian and Frankish towns are frequently raided.

The Rise and Fall of Viking Rule in Frisia

• In 879, another Viking leader, Godfrid, Duke of Frisia, launches new raids on the Frisian lands, further destabilizing Frankish authority.
• The inability of West and East Francia to maintain control over Frisia allows local noblemen to take up the fight against Viking rule.
• Among these rising local leaders is Gerolf of Holland, who emerges as a key figure in the struggle for power.

The End of Viking Rule: Gerolf of Holland and the Assassination of Godfrid

• In 885, Gerolf, alongside other Frankish nobles, helps assassinate Godfrid, marking the end of Viking dominance in Frisia.
• In recognition of his role, Gerolf assumes lordship over Frisia, further cementing the transition from Carolingian royal rule to local noble governance.

The Legacy: The Fragmentation of Lower Lotharingia

• With the decline of central authority and the failure of East Francia to enforce its rule, Lower Lotharingia begins to fragment into semi-independent feudal states.
• The power vacuum left by the Carolingians and the Viking invasions strengthens the territorial lords, paving the way for the formation of the medieval Dutch and Flemish counties.
• Over time, these emerging feudal domains—such as Holland, Flanders, Brabant, and Gelre—will form the foundation of the medieval Low Countries, ultimately shaping the region’s future as an independent political entity.

Thus, what began as Carolingian instability and Viking incursions in the 9th century ultimately leads to the rise of regional feudal states, setting the stage for the later development of the Netherlands and Belgium.