Langenau Castle is an old lowland castle in the municipality of Obernhof in the county of Rhein-Lahn-Kreis.
The site of the fortification was the confluence of the Gelbach and the Lahn rivers. As a result, the castle is designed as a lowland type, which is unusual for this region.
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 family kept the castle as a joint inheritance or Ganerbschaft for centuries.
The original fortress was turned into a water castle on the construction of a dyke. Today, of the 13th century fortification, only the square Romanesque style bergfried is left. 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. Presumably by the middle of the 14th century, when the Langenaus built New Langenau Castle as their main residence, the castle no longer served as a noble seat, but primarily as a base from which to manage the estate.
In 1613 the Langenau family died out. The castle changed ownership several times in the years that followed. In the 17th century, a large timber-framed domestic building was built. 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. She had the schloss converted in 1851 into a hospital and home for children of the poor.
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The Temple of Edfu is one of the best preserved ancient shrines in Egypt. It was built in the Ptolemaic Kingdom between 237 and 57 BC.
Edfu was one of several temples built during the Ptolemaic Kingdom, including the Dendera Temple complex, Esna, the Temple of Kom Ombo, and Philae. Its size reflects the relative prosperity of the time. The present temple initially consisted of a pillared hall, two transverse halls, and a barque sanctuary surrounded by chapels. The building was started during the reign of Ptolemy III Euergetes and completed in 57 BC under Ptolemy XII Auletes. It was built on the site of an earlier, smaller temple also dedicated to Horus, although the previous structure was oriented east–west rather than north–south as in the present site.