Langenau Castle

In 1243 the castle was first mentioned in the will of Countess Mechthild of Sayn who left it to the Archbishopric of Cologne.

The archbishop enfeoffed the fortress shortly thereafter to the noble family of Langenau, cousins of the counts of Laurenburg and thus of the House of Nassau.

The remaining fortifications, an enceinte and an eight-metre-high shield wall with two flanking towers, show elements of Gothic architecture and appeared in the 14th or 15th centuries.

In 1696 the mercantile and industrialist family of Marioth purchased the site as their residence and had it converted into a schloss in 1698.

In 1847, Countess Giech, a daughter of Prussian reform minister, vom und zum Stein, became the new occupant.