St Martin de la Bellouse dates from around 1225 with the centrally situated tower (similar to the one at the Forest Church), nave and chancel completed by 1250. The South porch was added around 1520 and until 1869, was the meeting place of the Douzaine. The church sits on an ancient holy site in attractive surroundings.
The church is well known for the female menhir stone figure (dating back to 2500 - 1800 BC) La Gran' Mere du Cimquiere which guards the entrance to the cemetery. In prehistoric times, the statue would have been idolised and in the 1700's it became the focus of witchcraft. Even in the 19th century this activity is thought to have continued and a church warden his reported to have split the stone, but locals later repaired it. Today some folk still place coins on her head or flowers around her neck for good luck. The Church has the only font in the island which dates from before the Reformation.
References:
The Externsteine (Extern stones) is a distinctive sandstone rock formation located in the Teutoburg Forest, near the town of Horn-Bad Meinberg. The formation is a tor consisting of several tall, narrow columns of rock which rise abruptly from the surrounding wooded hills. Archaeological excavations have yielded some Upper Paleolithic stone tools dating to about 10,700 BC from 9,600 BC.
In a popular tradition going back to an idea proposed to Hermann Hamelmann in 1564, the Externsteine are identified as a sacred site of the pagan Saxons, and the location of the Irminsul (sacral pillar-like object in German paganism) idol reportedly destroyed by Charlemagne; there is however no archaeological evidence that would confirm the site's use during the relevant period.
The stones were used as the site of a hermitage in the Middle Ages, and by at least the high medieval period were the site of a Christian chapel. The Externsteine relief is a medieval depiction of the Descent from the Cross. It remains controversial whether the site was already used for Christian worship in the 8th to early 10th centuries.
The Externsteine gained prominence when Völkisch and nationalistic scholars took an interest in the late 19th and early 20th centuries. This interest peaked under the Nazi regime, when the Externsteine became a focus of nazi propaganda. Today, they remain a popular tourist destination and also continue to attract Neo-Pagans and Neo-Nazis.