Drachenfels Castle is located about seven kilometres north of the Franco-German border on the eponymous 150-metre-long bunter sandstone rocks which are on a ridge at an elevation of 368 metres above sea level.
The name of the castle could have come from the dragon carved in the sandstone wall of the old great hall of the castle. However, because it has not been dated, it is also possible that the dragon was inscribed on the wall because of the castle's name.
The origins of the castle are largely unclear. Archaeological finds here can be dated to the mid-13th century, but the castle was already in existence in the early 12th century. In 1209 the brothers Conrad and William of Drachenfels were first mentioned in the records. Historian, Johann Lehmann (1797–1876), named a Burkhard of Drachenfels between 1219 and 1221 who was in service for the House of Hohenstaufen, but he gave no references. Other documents confirm that, in 1288, a dispute was settled between the cousins Rudolph and Anselm of Drachenfels on the one hand and the Bishop of Worms on the other. The oldest surviving seal of these two cousins depicts a dragon in a pointed shield. From the early 14th century the seal contained a deer's skull or a wild goose. The first lesser nobleman who it is known with any certainty had a connexion with this castle in the Wasgau is Walter of Drachenfels in 1245.
In 1314 the lords of Drachenfels were promised compensation payments for a campaign by the city of Strasbourg against Berwartstein Castle, during which the nearby castle at Drachenfels was also besieged and damages. In 1335 there was a conflict with Strasbourg in which the lords of Drachensfels were accused of being robber barons. At this time Drachenfels was besieged and partially destroyed, forcing its lords to gradually sell off parts of the castle from 1344. As a result, Drachenfels became a jointly-owned castle or Ganerbenburg, whereby several families or individuals divided the estate between themselves.
In 1510 the rebellious imperial knight, Francis of Sickingen, also bought a share in the castle. On 10 May 1523, after his defeat by the allied armies of three imperial princes, the castle was finally destroyed., although the Burgvogt, who occupied it with just eight servants, had surrendered without a fight owing to the odds that he was faced with. The victors refused to allow the castle to be rebuilt.
What was left of the castle after it had been slighted was used as a quarry. In 1778, a descendent of its owners, Freiherr Franz Christoph Eckbrecht von Dürkheim, built a manor house in the village of Busenberg with the stones from Drachenfels, which is known today as the Schlösschen. The church in Busenberg was also built from stones from the ruined castle.
The moderate remains of the castle in the eastern part of the site are dominated by the so-called Backenzahn, the castle rock in the east. On the rock only a few original wall courses have survived. All the same, a climb up the steps partially carved into the rock conveys an idea of the strength of the fortification. On the plateau of the former bergfried are the remains of a cistern. In the rooms hewn out of the rock, putlock holes and other manmade marks chiselled into the sandstone indicated that it was once entirely covered by timber framed or stone buildings.
Considerably more has survived of the lower ward and gate system. In 1903, the gate tower was enhanced by two round-arched portals.References:
Kristiansten Fortress was built to protect the city against attack from the east. Construction was finished in 1685. General Johan Caspar von Cicignon, who was chief inspector of kuks fortifications, was responsible for the new town plan of Trondheim after the great fire of 18 April 1681. He also made the plans for the construction of Kristiansten Fortress.
The fortress was built during the period from 1682 to 1684 and strengthened to a complete defence fortification in 1691 by building an advanced post Kristiandsands bastion in the east and in 1695 with the now vanished Møllenberg skanse by the river Nidelven. These fortifications were encircled by a continuous palisade and thereby connected to the fortified city. In 1750 the fortress was modernized with new bastions and casemates to protect against mortar artillery.