Friese freedom or freedom of the Frisians (Frisian: Fryske frijheid, Dutch: Friese Vrijheid) was the absence of feudalism and serfdom in Frisia, the area that was originally inhabited by the Frisians. Historical Frisia included the modern provinces of Friesland and Groningen, and the area of West Friesland, in the Netherlands, and East Friesland in Germany. During the period of Frisian freedom the area did not have a sovereign lord who owned and administered the land. The freedom of the Frisians developed in the context of ongoing disputes over the rights of local nobility.
When, around 800, the Scandinavian Vikings first attacked Frisia, which was still under Carolingian rule, the Frisians were released from military service on foreign territory in order to be able to defend themselves against the heathen Vikings. With their victory in the Battle of Norditi in 884 they were able to drive the Vikings permanently out of East Frisia, although it remained under constant threat. Over the centuries, whilst feudal lords reigned in the rest of Europe, no aristocratic structures emerged in Frisia. This 'freedom' was represented abroad by redjeven who were elected from among the wealthier farmers or from elected representatives of the autonomous rural municipalities. Originally the redjeven were all judges, so-called Asega, who were appointed by the territorial lords.
The killing of Arnulf, Count of Holland in 993 is the first sign of the Frisian freedom. This Frisian count was killed in a rebel attempt to compel obedience from his subjects. The murder of another Count Henri de Gras in 1101 is regarded as the de facto beginning of the Frisian freedom. This freedom was recognized by the Holy Roman Emperor William II on November 3, 1248. He did this after the Frisians aided in the siege of the city of Aachen. In 1417 the status of the Frisians was reaffirmed by Emperor Sigismund. Later, Emperor Louis IV repealed these rights and granted Friesland to the Count of Holland.