Brokmerbrief

It describes the polity and judicial system of a country whose law was based on the will of the assembled people (the 'Frisian freedom'): political and judicial power was in the hands of functionaries selected annually from the ranks of the farmers, who were known as redjeven (consuls, counsellors); their power in turn was regulated by the Brokmerbrief.

However, unlike for example Emsigerland, Brokmerland remained a discrete unit, since the Brokmerbrief forbids the erection of fortified stone residences and castles and this had prevented the establishment of such starting points for localised rule.

Thus feudalism, otherwise widespread throughout Europe at this time, remained unknown in East Frisia.

However, Emsig Law eventually prevailed in the area, probably as a result of the emergence of the tom Brok dynasty, but certainly by the time of Cirksena hegemony.

The middle section of the text strongly resembles the Emsig law on fines, indicating a common source.