The area of jurisdiction was the rural
grietenij, a judicial district that comprised several church villages (similar to a modern-day municipagreitlity or
gemeente). In total, the region of Friesland had 30 such rural districts, outside the cities. Each of the 30 grietmannen and 11 city mayors formed the
Friese Landdag, which was founded in 1504 by the Duke of Saxony, and was a central government for Friesland. The Friese Landdag met in
Leeuwarden. Each mayor and grietman had a vote ensuring that the rural population was fairly represented in Friesland. This method of proportional representation, which accounted for both the rural and city populations, was a distinctive and democratic system in Friesland, when compared to the political and legal systems found in Europe during that time period. The
grietman was responsible for mustering local militia, gathering both armour and weapons (e.g.
speets, degen, harnas, bekkeneel), supplies and abled-bodied men aged between 16 and 60. The grietman needed to have sufficient influence and military power to conduct interviews, order detentions, and enforce penalties and fines when necessary. This required both political and actual military clout among the local population. In 1498,
Albrecht III, Duke of Saxony made Leeuwarden the seat of the Court of Friesland (
Hof van Friesland), a higher court that dealt with government of lands, capital crimes and a court of appeal, which resulted in a shift of power away from the local level.
Grietmannen no longer had the power to try capital crimes, such as those involving manslaughter or homicide, at the local level. ==Election==