The Hachenburg town and castle.

The castle, former seat of the Counts of Sayn, was founded about 1180 by Count Heinrich II of Sayn, and was finished in 1212 under Count Heinrich III, the founder's son, who was also mentioned as the town's and the castle's first owner.
In 1314, Hachenburg, whose name comes from a castle hill protected by thornbushes, was granted town rights. The original settlement lay not on the 390-m-high castle hill, but rather some 1.5 km away in the valley about 100 m lower through which runs the Oberbach river, on the site of what is now the outlying constituent community of Altstadt (Altstadt is German for Old Town. The Romanesque St. Bartolomäuskirche, built there about 1200 and nowadays an Evangelical church is Hachenburg's oldest preserved building. at the Old Market square in the town centre. The castle church only arose in the late 15th century and underwent several remodellings until the 18th century. The Catholic Church of the Assumption of Mary, from the early 18th century, belonged at first to a Franciscan monastery, but later, in 1813, became the parish church. In the Middle Ages, the town's population was most likely never more than about 500 to 1,000, and in the 17th and 18th centuries it was between 1,000 and 1,500. Only after the Second World War did this small town's population reach first 3,000, and nowadays almost 6,000.
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