Achtkarspelen is a municipality in the northern Netherlands. History The name Achtkarspelen is derived from the original eight kerspelen within the grietenij, namely: Augustinusga, Buitenpost, Drogeham, De Kooten, Kortwoude, Lutkepost, Surhuizum and Twijzel. Achtkarspelen held a separate status within Friesland for many years. In the Middle Ages Achtkarspelen fell under the Bishopric of Münster, meanwhile the rest of Friesland was a part of the Bishopric of Utrecht. The grietenij Achtkarsp… (More on Achtkarspelen)