After the year 1000, a new sense of cultural and economic openness encouraged the journeys of Christian pilgrims. They traveled from England, Germany, and France either to Jerusalem, Rome, or Santiago de Compostela, Spain. The protection of pilgrims became a pretext for the military exploits of the Crusaders, who reclaimed Jerusalem as their “Holy Land.”
Charlemagne’s palace and chapel at Aix-la-Chapelle, now called Aachen, remained a key project in his far-flung efforts to revive the Roman Empire.
The architect borrowed liberally from the Byzantine works in Ravenna. The palace derived its organization from Theodoric’s palace in Ravenna, which had been inspired by the imperial palace in Constantinople. The Palatine Chapel is the only piece of the imperial complex in Aachen that remains intact.
The architect attempted to copy San Vitale in Ravenna for the emperor’s mausoleum, producing a stiff approximation of the two-storied octagon supporting a dome on a drum. Above the main entry to the Aachen chapel rose the two towers of the castellum, or fortress.
Throughout the 9th century, Viking raiders from Scandinavia menaced the stability of much of Europe. They became enthusiastic sponsors for rebuilding monasteries. Their circular layout probably derived from Viking camps such as Trelleborg, built in 9th-century Denmark.
The Normans shipped the limestone from Caen to execute the ashlar construction of Westminster Abbey and many other convent churches. Durham cathedral, the northernmost Norman outpost, rose as their most ambitious commission. The impressive architectural output under the Norman rulers relied on local Muslim craftsmen and Byzantine artists for its vigor.
When the Crusaders finally took Jerusalem in 1099, they massacred the entire population of Jews and Arabs. The Kingdom of Jerusalem broke into four feudal states, and soon the new European overlords constructed over fifty castles to control the region. They hoisted a golden cross over the Dome of the Rock, now called the Temple of the Lord. The geometric rigor of Frederick II’s fortresses in Sicily and Puglia were without equal. Frederick II’s synthesis of religious and secular forms at Castel del Monte resulted in the highest expression of the idealism that began with Charlemagne for the revival of the grandeur of imperial Rome.
Around the year 1000, four Italian ports, Amalfi, Pisa, and Genoa on the western side of the peninsula, and Venice on the east, emerged as key shipping powers around the Mediterranean. The merchant regimes fostered a new civic consciousness leading to the construction of impressive public and religious monuments. The contact across the Mediterranean affected the development of European taste. The stilted arch windows of Byzantine Constantinople reappeared on the facades along the Grand Canal in Venice.
Pisa’s Duomo complex setting proved unusual, standing in open space planted with grass, remained outside of the old city limits. By the mid-13th century they had added the marble-clad Campo Santo cemetery on the north side and the long elevation of the pilgrims’ hospice to the south, further defining the area as an enclosed temenos. By the 1150s, the dome was complete, rising from an oval plan to a section that followed the profile of a pointed arch, similar to contemporary domes in the eastern Mediterranean area.
The Fatimids built their first Great Mosque, the al-Azhar, toward the end of the 10th century inside the walls near the eastern palace. It became the principal Islamic study center and basis of the university. Fatimid arches and niches had a distinct style, like triangles with rounded corners.
The groundswell of medieval European urbanism coincided with the birth of Gothic architectural style. The new prosperity of the cities encouraged the expansion of city walls, gigantic cathedrals, and impressive civic buildings, such as town halls, covered markets, and hospitals.
In the mid-13th century the French king Louis IX conducted a campaign in the south of France against renegade Christians of the Cathar sect. One of the prime rebel forts, Carcassonne, fell to Louis IX in 1240. He rebuilt it as a fortress. On a flat site adjacent to the fortress of Carcassonne, the king commissioned a polygonal new town with an approximate grid of square blocks for the resettlement and control of the population of Cathar origin.
The building boom in European cities during the 13th and 14th centuries nurtured the new Gothic style in church building, architecture as distinct in its details as the classical style of the Romans. The designers experimented with slender structural members to accentuate verticality, progressively eliminating the mass of the walls to fulfill an underlying goal of creating “heavenly” interior light. The master builders of the cathedrals greatly advanced the technical possibilities of construction using three structural expedients: pointed arches, ribbed vaults, and flying buttresses. While none of the three was a new invention, together they comprised an architectural theory that served the symbolic nature of light.