The Category A listed Holy Trinity is the most historic church in St Andrews. The church was initially built on land, close to the south-east gable of the Cathedral, around 1144, and was dedicated in 1234 by Bishop David de Bernham. It then moved to a new site on the north side of South Street between 1410–1412 by bishop Warlock. Much of the architecture feature of the church was lost in the re-building by Robert Balfour between 1798–1800. The church was later restored to a (more elaborately decorated) approximation of its medieval appearance between 1907–1909 by MacGregor Chambers.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.