The oratory at Germigny-des-Prés was built by Bishop Theodulf of Orléans in 806 as part of his palace complex within the Gallo-Roman villa in Germaniacus. Theodulf, who was also abbot of the neighboring monastery of Saint-Benoît-sur-Loire, was a Spaniard and one of the most celebrated men of letters in the Carolingian Empire court of Charlemagne. The Carolingian architecture of his palace complex at Germigny-des-Prés was in a general sense modelled on Charlemagne's Palace of Aachen. All except the oratory was destroyed by the Vikings within a century of construction.
As reconstructed by Theodulf in 806, the oratory took the form of a rough square with single apses in the middle of the north, south, and west sides, and three apses on the east side. Internally, the space took the form of a Greek cross: a high central tower filled the central bay, barrel vaults extended off in the north, south, east, and west bays, while in the corner bays there were low domes carried on squinches. This plan type was later to become standard in Byzantine architecture.
The great treasure of the church is the mosaic of the Ark of the Covenant, on the ceiling of the apse. This mosaic is the only surviving Byzantine mosaic in France, although traces of mosaics elsewhere on the roof indicate that it was part of a wider decorative scheme. The mosaic owes its preservation to being plastered over at the time of the French Revolution; it was rediscovered in the middle of the 19th century. The mosaic is one of the few remaining artworks from the period of the Iconoclasm which convulsed the Eastern Church during the 8th & 9th centuries, but which also impacted on Western Christendom. Traditionally, the place occupied by this mosaic was reserved for images of the Virgin Mary, enthroned as Queen Of Heaven, with the Christ child on her knee, and with an attendant angel on either side. These angels pointed out the divine status of the figures between them.
The artist working at Germigny (who was obviously au fait with Byzantine practice, if not actually Greek himself) has replaced the portrait of the Virgin, Mother of Christ, with an equivalent but symbolic representation. The Ark of the Covenant contains ‘manna’, the miraculous bread given from Heaven to the Israelites in the desert; this was interpreted as a prefiguration of the Virgin, who bears Christ, the Holy Bread. The mosaicist, and Théodulf d'Orléans, seem to have held a middle course, balanced between extreme iconoclasm and the partisans of images such as John of Damascus. This moderate position is exactly that which the theologians appointed by Charlemagne in the Council of Frankfurt (794) decided upon.
References:Trenčín Castle is relatively large renovated castle, towering on a steep limestone cliff directly above the city of Trenčín. It is a dominant feature not only of Trenčín, but also of the entire Považie region. The castle is a national monument.
History of the castle cliff dates back to the Roman Empire, what is proved by the inscription on the castle cliff proclaiming the victory of Roman legion against Germans in the year 179.
Today’s castle was probably built on the hill-fort. The first proven building on the hill was the Great Moravian rotunda from the 9th century and later there was a stone residential tower, which served to protect the Kingdom of Hungary and the western border. In the late 13th century the castle became a property of Palatine Matúš Csák, who became Mr. of Váh and Tatras.
Matúš Csák of Trenčín built a tower, still known as Matthew’s, which is a dominant determinant of the whole building.