Kaltenburg Castle was built during the High Middle Ages and though ruined, most of the walls are intact. The name of the castle appears to come from the name of the castle founder Heinrich von Kalden also known as Bappenheim or Pappenheim, who was the Marshal of the Empire under Emperor Frederick II. The castle was built some time between 1150 and 1180.
Under the Hohenstaufen kings the rulers of Kaltenburg swore fealty only to the Emperor, an unusual privilege for a German noble. In 1240 Dietmar is mentioned in connection with the castle. While in 1265 Otto von Kaltenburg is mentioned as the ruler. By 1332 the castle is owned by Graf or Count von Helfenstein. The count's landvogt or administrator was Heinz Vetzer who lived in the tower.
In 1357 the castle was held by the von Riedheim family. They had received the castle either as a loan from the Duchy of Bavaria or they were serving as a landvogt or administrator for the Imperial City of Ulm. During the 15th century several nobles occupied the castle including the von Grafeneck and Stadion families.
The castle was besieged and severely damaged in 1435 by troops from Nürnberg. A second destruction occurred in 1632–34 during the Thirty Years' War. It was rebuilt in 1677 by the von Riedheim family. However, in 1764 the south west wall collapsed. The towers were dismantled and transported to Reuendorf to build a storage building.
After portions of the castle collapsed the castle church was destroyed in 1804. Two years later portions of the inner castle were dismantled, with more portions collapsing in 1806. When the castle was taken over by the Graf von Maldeghem in 1820, five families lived in the castle. After 1837 30 inhabitants were mentioned to still live in the castle. After 1897 it appears that only the gatehouse was still intact and occupied.
The first attempts to conserve the ruins happened in 1938 and 1940. This process continued in 1980 and 1983. During this period, the two square towers were cleaned and rebuilt.
The construction of the castle occurred in four, still visible, stages. The castle from the 12th century was really only a Tower house located on a rocky outcrop. In the 13th and 14th century the site was expanded to its current size. From 1450 until 1560 it was expanded once again. Finally, after the destruction of the Thirty Years' War, it was rebuilt in 1677 and the two remaining square towers were added.
The irregular pentagon shape of the curtain wall was protected by the two remaining square towers and three or possibly four round towers. On the flatter hill side, the walls were protected by angular 5 m deep and 10 to 16 m wide moat. The gatehouse was located in the south near a steep cliff.
In the north west, under the ruins of the outer wall, a part of the older moat is still visible. On the plateau a 4 m high and about 16 m long piece of the curtain wall remains. The buildings of the first and second construction phases are almost all gone, only a few stones indicate where the 13 m high tower once was. The 3.4 m thick curtain wall was once part of the east wall of the square tower house of the first castle. The keep of the second castle was likely located to the west on a deeper section of bedrock.
The curtain wall of the 13th/14th-century castle is nearly all gone, except for the south wall with a gate house. On the southwest corner the wall of the tower house is still visible. The construction is 10 m long and still 7 to 8 m high and about 2.2 m thick. The outer walls with the foundations of the round towers on the hill side, have been extensively restored and repaired. They reflect the condition of the castle in the 16th century. On the valley side, the two tall square towers date from the 1677 reconstruction. The towers, crowned with pyramidal roofs, are visible across the valley.References:
The St Sophia's Cathedral was built between 1045-1050 inside the Novgorod Kremlin (fortress). It is one of the earliest stone structures of northern Russia. Its height is 38 m. Originally it was taller, for during the past nine centuries the lower part of the building became concealed by the two-metre thick cultural layer. The cathedral was built by Prince Vladimir, the son of Yaroslav the Wise, and until the 1130s this principal church of the city also served as the sepulchre of Novgorodian princes. For the Novgorodians, St Sophia became synonymous with their town, the symbol of civic power and independence.
The five-domed church looks simpler but no less impressive than its prototype, the thirteen-domed St Sophia of Kiev. The cathedral exterior is striking in its majesty and epic splendour evoking the memories of Novgorod's glorious past and invincible might. In the 11th century it looked more imposing than now. Its facade represented a gigantic mosaic of huge, coarsely trimmed irregular slabs of flagstone and shell rock. In some places (particularly on the apses), the wall was covered with mortar, smoothly polished, drawn up to imitate courses of brick or of whitestone slabs, and slightly coloured. As a result, the facade was not white, as it is today, but multicoloured. The play of stone, decorative painting and the building materials of various texture enhanced the impression of austere simplicity and introduced a picturesque effect.
The two-storied galleries extend along the building's southern, western and northern sides, with a stair-tower constructed at the north-eastern corner. The cathedral has three entrances - the southern, western and northern, of which the western was the main one intended for ceremonial processions. A gate standing at the entrance is known as the Sigtuna Gate (mid-12th century); according to legend, it was brought from the Swedish town of Sigtuna in 1187. The second name of the gate derives from the town of Magdeburg, where it was made. The two leaves are decorated with biblical and evangelical scenes in cast bronze relief. In the lower left corner there are portraits of the craftsmen who created this superb specimen of medieval Western European bronze-work. An inscription in Latin gives their names, Riquin and Weissmut. The small central figure - judging from an inscription in Slavonic - is a representation of the Russian master craftsman Avraam, who assembled the gate.
There is yet another bronze gate in the cathedral, called the Korsun Gate. Made in the 11th century in Chersonesos, Byzantium, it leads from the southern gallery into the Nativity Side-Chapel. Legend has it that the gate was handed over to Novgorod as a gift of Prince Yaroslav the Wise (c. 978 - 1054).
The interior of the cathedral is as majestic as its exterior. It is divided by huge piers into five aisles, three of which end in altar apses. In the south-western corner, inside the tower, there is a wide spiral in relatively small, modest buildings of the 12th - 16th centuries.