St. Emmeram's Abbey, now known as Schloss Thurn und Taxis, was a Benedictine monastery founded in about 739 at the grave of the itinerant Frankish bishop Saint Emmeram.
Saint Wolfgang, who was made bishop in 972, ordered that a library be constructed at St. Emmeram shortly after his arrival in Regensburg. An active scriptorium had existed at St. Emmeram in the Carolingian period, but it is not known whether it occupied a special building, and it appears that relatively few manuscripts of poor quality were produced there during the early tenth century. Over time, some works in the scriptorium were copied by monks, some works were preserved from the Carolingian period, and others were acquired as gifts.
In 1295 the counter-king Adolf of Nassau and granted St. Emmeram's as Imperial abbey, an independent sovereign power subject directly to the emperor.
After a decline in its significance during the 16th century the abbey enjoyed a resurgence in the 17th and 18th centuries under abbots Frobenius Forster, Coelestin Steiglehner, Roman Zirngibl and Placidus Heinrich, great scholars, particularly in the natural sciences. Under their leadership the abbey academy came to rival the Münchner Akademie. St. Emmeram's had a long tradition of scientific enquiry dating from the Middle Ages, in witness of which the monastery preserved the astrolabe of William of Hirsau.
In 1731, the abbots were raised to the status of Princes of the Empire. Between 1731 and 1733 there followed the magnificent Baroque refurbishment, by the Asam brothers, of the abbey church, which had been repeatedly burnt out and repaired.
In 1803, St. Emmeram's, along with the Imperial City of Regensburg, the Bishopric of Regensburg and the two other Imperial Abbeys, lost its previous politically independent status to the newly formed Principality of Regensburg, often referred to as the Archbishopric of Regensburg, under the former Prince-Primate Carl Theodor von Dalberg. After the Treaty of Paris of 1810, the entire Principality of Regensburg was transferred to Bavaria. The treasures of St. Emmeram's and its valuable library were mostly removed to Munich.
In 1812 the monastic buildings were granted to the Princes of Thurn und Taxis, who had St. Emmeram's Abbey converted as a residence known from then on as Schloss Thurn und Taxis, sometimes called Schloss Sankt Emmeram.
The abbey church became a parish church before Pope Paul VI accorded the status of a basilica minor in 1964. The Romanesque basilica with three aisles, three choirs and a west transept is based on an original church building from the second half of the 8th century. Since that time it has been many times partly destroyed and rebuilt. The oldest extant part of the building is the ring crypt under the choir of the northern aisle. The three medieval carved stone reliefs on the north portal, dating from about 1052, the oldest of their type in Germany, represent Christ, Saint Emmeram and Saint Denis. The west transept has a painted wooden ceiling depicting Saint Benedict of Nursia. The crypt of Saint Wolfgang is beneath the choir of Saint Denis. Next to Saint Denis's altar in the northern aisle is the tomb of Emma, Queen of the East Franks (died 876), let into the wall. The high altar dates from 1669.
St. Rupert's church was formerly the parish church of the monastery. The church, with two aisles, was constructed in the second half of the 11th century, but was frequently adapted and enlarged. The nave is from the 14th century, the choir from 1405, the high altar with four pillars and a picture of the baptism of Duke Theodo of Bavaria by Saint Rupert from 1690 and the decoration and fittings from the 17th and 18th centuries. The tabernacle on the north side of the choir has figures of Saint Rupert and other saints. The altar of Saint Michael dated from 1713. The nave is decorated with pictures of the miracles of Saint Rupert.References:
The Mosque–Cathedral of Córdoba, also known as the Great Mosque of Córdoba and the Mezquita is regarded as one of the most accomplished monuments of Moorish architecture.
According to a traditional account, a small Visigoth church, the Catholic Basilica of Saint Vincent of Lérins, originally stood on the site. In 784 Abd al-Rahman I ordered construction of the Great Mosque, which was considerably expanded by later Muslim rulers. The mosque underwent numerous subsequent changes: Abd al-Rahman II ordered a new minaret, while in 961 Al-Hakam II enlarged the building and enriched the Mihrab. The last of such reforms was carried out by Almanzor in 987. It was connected to the Caliph"s palace by a raised walkway, mosques within the palaces being the tradition for previous Islamic rulers – as well as Christian Kings who built their palaces adjacent to churches. The Mezquita reached its current dimensions in 987 with the completion of the outer naves and courtyard.
In 1236, Córdoba was conquered by King Ferdinand III of Castile, and the centre of the mosque was converted into a Catholic cathedral. Alfonso X oversaw the construction of the Villaviciosa Chapel and the Royal Chapel within the mosque. The kings who followed added further Christian features, such as King Henry II rebuilding the chapel in the 14th century. The minaret of the mosque was also converted to the bell tower of the cathedral. It was adorned with Santiago de Compostela"s captured cathedral bells. Following a windstorm in 1589, the former minaret was further reinforced by encasing it within a new structure.
The most significant alteration was the building of a Renaissance cathedral nave in the middle of the expansive structure. The insertion was constructed by permission of Charles V, king of Castile and Aragon. Artisans and architects continued to add to the existing structure until the late 18th century.
The building"s floor plan is seen to be parallel to some of the earliest mosques built from the very beginning of Islam. It had a rectangular prayer hall with aisles arranged perpendicular to the qibla, the direction towards which Muslims pray. The prayer hall was large and flat, with timber ceilings held up by arches of horseshoe-like appearance.
In planning the mosque, the architects incorporated a number of Roman columns with choice capitals. Some of the columns were already in the Gothic structure; others were sent from various regions of Iberia as presents from the governors of provinces. Ivory, jasper, porphyry, gold, silver, copper, and brass were used in the decorations. Marvellous mosaics and azulejos were designed. Later, the immense temple embodied all the styles of Morisco architecture into one composition.
The building is most notable for its arcaded hypostyle hall, with 856 columns of jasper, onyx, marble, granite and porphyry. These were made from pieces of the Roman temple that had occupied the site previously, as well as other Roman buildings, such as the Mérida amphitheatre. The double arches were an innovation, permitting higher ceilings than would otherwise be possible with relatively low columns. The double arches consist of a lower horseshoe arch and an upper semi-circular arch.