Taggenbrunn Castle site was already used as a Celtic-Roman hillfort settlement in the 6th century BC. The first mention of current castle dates from 1142. The castle was destroyed in 1258 in a rebellion agains Duke Albrecht I and rebuilt ten years later. Later the castle was owned by the Holy Roman Empire and archbishopric of Salzburg. The castle was expanded in 1497-1503. In the 17th and 18th centuries Taggenbrunn was left to decay. Today there is a wineyard and restaurant.
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.