How did Frisian trade contribute to the economy of the Frankish Low Countries?

Frisian trade played a vital role in the economy of the Frankish Low Countries, particularly during the Carolingian period. Centered at Dorestad, this commercial activity was significantly stimulated by the region's absorption into the Frankish empire, reaching its zenith under Charlemagne and Louis I the Pious.1

By becoming part of the Frankish empire, Friesland gained access to a crucial hinterland in the southern regions of the Meuse and Rhine rivers. This allowed the Frisians to develop extensive export and through-trade networks reaching Denmark, Norway, and the Baltic countries. The economic importance of this trade is evidenced by the presence of royal mints and tolls at key centers like Dorestad.1

The Frisian trade network was supported by the southern Low Countries, which supplied essential goods for export. For instance, cloths sold as "Frisian cloths" were actually produced in the Schelde region, later known as Flanders. Beyond textiles, the Frisians were also involved in the trade of salt and cattle, contributing to a more versatile and prosperous economic structure in the coastal regions.12