The original Husen castle, documented for the first time in 1246, was probably built here by the dukes of Zähringen in the 12th century. It given into the possession of the counts of Freiburg. In 1303, the castle went to the counts of Fürstenberg as a result of the marriage of Verena of Freiburg.
Count Henry IV of Fürstenberg had the castle extensively remodelled and expanded from 1453 to 1477. A neck ditch and an outer ward guarded the actual castle with its palas and bergfried.
The castle was the residence of the prince’s castellans (Burgvögte). In 1632 it burned down and was rebuilt. In 1643 French-Weimar troops under Jean Baptiste Budes de Guébriant destroyed the castle.
Later the ruins were incorporated into fortified earthworks or schanzen in order to defend the valley against enemy troops. In 1896 the bergfried was given battlements instead of the tower’s conical roof. In 1968 the town of Hausach purchased the ruins from the House of Fürstenberg. Today, parts of the palas wall, the so-called battery tower and the bergfried survive.References:
The Basilica of Santa Maria in Trastevere is one of the oldest churches of Rome. The basic floor plan and wall structure of the church date back to the 340s, and much of the structure to 1140-43. The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Pope Julius I.
The inscription on the episcopal throne states that this is the first church in Rome dedicated to Mary, mother of Jesus, although some claim that privilege belongs to the Basilica di Santa Maria Maggiore. A Christian house-church was founded here about 220 by Pope Saint Callixtus I (217-222) on the site of the Taberna meritoria, a refuge for retired soldiers. The area was made available for Christian use by Emperor Alexander Severus when he settled a dispute between the Christians and tavern-keepers.
The church underwent two restorations in the fifth and eighth centuries and in 1140-43 it was re-erected on its old foundations under Pope Innocent II.