Speyer Cathedral was founded by Konrad II in 1030, probably soon after his imperial coronation. It was rebuilt by Henry IV, following his reconciliation with the Pope in 1077, as the first and largest consistently vaulted church building in Europe. The Cathedral was the burial place of the German emperors for almost 300 years.
Speyer Cathedral is historically, artistically and architecturally one of the most significant examples of Romanesque architecture in Europe. Today – after the destruction of the Abbey of Cluny – Speyer Cathedral is the biggest Romanesque church in the world. Likewise its crypt, consecrated in 1041, is the biggest hall of the Romanesque era.
The Cathedral is an expression and self-portrayal of the abundance of imperial power during the Salian period (1024 - 1125) and was built in conscious competition to the Abbey of Cluny as the building representative of the papal opposition.
The Cathedral incorporates the general layout of St Michael of Hildesheim and brings to perfection a type of plan that was adopted generally throughout the Rhineland. This plan is characterized by the equilibrium of the eastern and western blocks and by the symmetrical and singular placement of the towers which frame the mass formed by the nave and the transept. Under Henry IV renovations and extensions were undertaken. Speyer Cathedral is the first known structure to be built with a gallery that encircles the whole building. The system of arcades added during these renovations was also a first in architectural history.
In its size and the richness of its sculptures, some created by Italian sculptors, it stands out among all contemporary and later Romanesque churches in Germany, and it had a profound influence on the pattern of their ground plans and vaulting.
No less than eight medieval emperors and kings of the Holy Roman Empire of the German Nation from Konrad II to Albrecht of Habsburg in 1309 were laid to rest in its vault. In 1689 the Cathedral was seriously damaged by fire. The reconstruction of the west bays of the nave from 1772 to 1778, as an almost archaeologically exact copy of the original structure, can be regarded as one of the first great achievements of monument preservation in Europe. The westwork, rebuilt from 1854 to 1858 by Heinrich Hübsch on the old foundations, is by contrast, a testimony to Romanticism’s interpretation of the Middle Ages, and as such an independent achievement of the 19th century.
Commissioned by the Bavarian King Ludwig I., the interior was painted in late Nazarene style by the school of Johannes Schraudolph and Josef Schwarzmann from 1846 to 1853.
In 1981, the cathedral was added to the UNESCO World Heritage List of culturally important sites as 'a major monument of Romanesque art in the German Empire'.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.