The palace before Charlemagne by
Jean Fouquet, in the
Grandes Chroniques de France, 15th century.
Charlemagne is in the foreground. In
ancient times, the Romans chose the site of Aachen for its thermal springs and its forward position towards
Germania. The site, called
Aquae Granni, was equipped with of
thermae that remained in use from the 1st to the 4th century. The Roman city grew in connection with the
thermae according to a classical
grid plan similar to that of
Roman legionary camps. A palace was used to accommodate the
governor of the
province or the Emperor. In the 4th century, the city and the palace were destroyed during the
Barbarian invasions.
Clovis made
Paris the capital of the
Frankish Kingdom, and Aachen Palace was abandoned until the advent of the Carolingian dynasty. The
Pippinid Mayors of the Palace carried out some restoration works, but it was at the time only one residence among others. The Frankish court was itinerant and the rulers moved according to the circumstances. Around 765,
Pepin the Short had a palace erected over the remains of the old Roman building; he had the thermae restored and removed its
pagan idols. As soon as he came to power in 768, Charlemagne spent time in Aachen as well as in other
villas in
Austrasia. Since his advent as King of the Franks, Charlemagne had led numerous military expeditions that had both filled his treasury and enlarged his realm, most notably towards the East. He conquered
pagan Saxony in 772–780, but this area resisted and the war with the
Saxons lasted for about thirty years. Charlemagne ended the Germanic custom of an itinerant court moving from place to place and established a permanent capital. As he was ageing, he decreased the frequency of military expeditions and, after 806, virtually did not leave Aachen. Aachen's geographic location was a decisive factor in Charlemagne's choice: the site was situated in the Carolingian heartlands of
Austrasia, the cradle of his family, East of the
Meuse river, at a crossroads of land roads and on a
tributary of the
Rur, called the
Wurm. From then, Charlemagne left the administration of the Southern regions to his son
Louis, named
King of Aquitaine, which enabled him to reside in the North. and its capital, Aachen, in the early 9th century. Besides, settling down in Aachen enabled Charlemagne to control the operations in Saxony from a closer position. Charlemagne also considered other advantages of the place: surrounded with forest abounding in game, he intended to abandon himself to
hunting in the area. The ageing emperor could also benefit from Aachen's hot springs. The scholars of the Carolingian era presented Charlemagne as the "New
Constantine"; in this context, he needed a capital and a palace worthy of the name. He left
Rome to the
Pope. The rivalry with the
Byzantine Empire also encouraged him to follow such a plan.
Importance of the project entrusted to Odo of Metz Historians know almost nothing about the architect of the Palace of Aachen,
Odo of Metz. His name appears in the works of
Eginhard (c. 775–840), Charlemagne's
biographer. He is supposed to have been an educated cleric, familiar with
liberal arts, especially
quadrivia. He had probably read
Vitruvius' treatise on architecture,
De Architectura. The decision to build the palace was taken in the late 780s or the early 790s, before Charlemagne held the title of emperor. Works began in 794 and went on for several years. Aachen quickly became the favourite residence of the sovereign. After 807, he almost did not leave it any more. In the absence of sufficient documentation, it is impossible to know the number of workers employed, but the dimensions of the building make it probable that there were many of them. The geometry of the plan chosen was very simple: Odo of Metz decided to keep the layout of the Roman roads and inscribe the square in 360 Carolingian
feet, or 120 metres-side square. The square enclosed an area of 50 acres divided in four parts by a North-South axis (the stone gallery) and an East-West axis (the former
Roman road, the
decumanus). To the north of this square lay the council hall, to the south the Palatine Chapel. The architect drew a triangle toward the East to connect the thermae to the palace complex. The two best-known buildings are the council hall (today disappeared) and the Palatine Chapel, included into the
Cathedral. The other buildings are hardly identified. Often built in
timber framing, made of
wood and
brick, they have been destroyed. Lastly, the palace complex was surrounded with a wall. The arrival of the court in Aachen and the construction work stimulated the activity in the city that experienced growth in the late 8th century and the early 9th century, as craftsmen, traders and shopkeepers had settled near the court. Some important ones lived in houses inside the city. The members of the Palace Academy and Charlemagne's advisors such as
Eginhard and
Angilbert owned houses near the palace. == Council Hall ==