Rabenstein Castle is a former high medieval aristocratic castle in the municipality of Ahorntal in the Upper Franconian county of Bayreuth. The spur castle may be visited for an entrance fee.
In the vicinity of Rabenstein Castle there used to be several other castles: on the opposite side of the valley is the suspected site or burgstall of Brunnloch or Rabenloch, a little further up the Ailsbach valley once stood the castle of Ahorn, the present day hamlet of Klausstein, opposite it is probably the site of Hohenloch Castle above Ludwig's Cave, down the valley lies the Alte Veste and in the village of Oberailsfeld there was once another small fortification, Ailsfeld Castle on a rock in the valley. Towards the west, above the valley of the Wiesent, stands Rabeneck Castle, a fortification probably founded by the Rabensteins.
The oldest parts of the castle were built in the first quarter of the 12th century as a residence in the Barony of Waischenfeld. At the same time the ministerialis family of Rabenstein, who were the builders of the castle and bore the raven on their coat of arms, were recorded as being in the service of the barons of Waischenfeld. In the early 13th century, the outer ward was expanded. During the following centuries ownership and occupancy of the castle changed hands several times. Its occupants included the House of Schlüsselberg and its lords, the burgraves of Nuremberg. In 1450 the castle was destroyed in the First Margrave War and in 1489 was rebuilt by Conz of Wirsberg.
In 1557 the castle went to the von Rabensteins who had ambitions for the nobility and bought back their family seat. Daniel of Rabenstein remodelled the castle in 1570, the old outer ward being merged with the inner ward.
During the Thirty Years' War, the castle was again completely destroyed by imperial troops, because its lord, Hans Christoph of Rabenstein, aligned himself with the Swedes. After the war between 1648 and 1728 a few small buildings and a farm were re-established.
In 1742 the von Rabensteins died out and the castle went to the counts of Schönborn-Wiesentheid, who revamped the ruins in 1829/30 for a royal visit by Ludwig I.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.