The Kaiserburg is not just a medieval fortress on a hill. It is the political heart of the Holy Roman Empire, hewn from dark sandstone and rising above the red tiled roofs of Nuremberg`s Old Town. For more than five centuries — from the mid-11th century to the end of the 16th century — all the emperors of the Holy Roman Empire of the German Nation stayed here.
Some came for just a few days while passing through, others stayed for months to govern one of the most complex and powerful political structures in Europe. Unlike the baroque splendour of Versailles or the refined comfort of the Viennese Habsburg palaces, the Kaiserburg impresses with its stark authenticity. This is a castle of power, where the walls remember the voices of Frederick Barbarossa, Charles IV, and many other rulers.
History of the Imperial Castle of Nuremberg (Kaiserburg)
The first fortifications on the sandstone cliff above the Pegnitz River appeared around the year 1000. At that time, the Holy Roman Empire had no permanent capital. Emperors ruled while constantly travelling — this mobile system of governance was called the "itinerant kingship". At a distance of one day`s horse ride, about 30 kilometres apart, imperial palaces were built — castle-residences that served the emperor and his vast court as a temporary home and administrative centre.
The first documented mention of an emperor staying specifically in Nuremberg dates from 1050. At that time, Emperor Henry III of the Salian dynasty spent several days here during one of his countless journeys.
12th Century: The Golden Age of the Hohenstaufens
The Kaiserburg acquired its true stone grandeur in the mid-12th century. In 1140, Emperor Conrad III of the Hohenstaufen dynasty began large-scale construction. However, the true architectural genius who turned Nuremberg into one of his favourite residences was his nephew and successor — the legendary Frederick I Barbarossa, which means "Red Beard".
It was under Barbarossa that the main architectural gems that the tourist sees today were built: the foundations of the monumental palace — the Palas — and the unique Double Chapel. Barbarossa loved Nuremberg not only for its advantageous strategic position at the crossroads of trade routes but also for the loyalty of its local population.
13th–14th Centuries: The Golden Bull and Imperial Treasures
In 1219, Emperor Frederick II granted Nuremberg the Great Charter of Liberties, which gave a powerful impetus to the development of urban civic consciousness. The growing city of Nuremberg increasingly came into conflict with the local burgraves — the emperor`s governors, who lived in their own fortress nearby. This confrontation lasted nearly two centuries and ended in 1427, when the last burgrave, Frederick VI of the House of Hohenzollern, sold the ruined part of the castle to the city. Curiously, the Hohenzollerns would later use this money to create the core of the power of Brandenburg-Prussia.
The year 1356 marked a true political triumph for Nuremberg. Emperor Charles IV of the House of Luxembourg issued a document that would change the structure of the empire for centuries to come — the Golden Bull. This constitution of the Holy Roman Empire remained in force until its dissolution in 1806. According to the Golden Bull, every newly elected emperor was obliged to hold his first Imperial Diet (Reichstag) precisely in Nuremberg. Furthermore, within the walls of the Kaiserburg were kept the greatest relics of the empire: the Imperial Regalia — the crown, sceptre, orb, and the legendary Holy Lance, which, according to tradition, the centurion Longinus used to pierce the side of the crucified Christ.
16th Century: Renaissance Bastions
With the growing Ottoman threat in the 16th century, the old medieval walls no longer seemed reliable. Between 1538 and 1545, the city authorities built powerful bastions around the castle according to the latest developments in fortification science. These earthen and stone fortifications, created by Italian engineers, turned the Kaiserburg into one of the most impregnable fortresses in Europe.
20th Century: Destruction and Phoenix
Paradoxically, in the 20th century, the castle was not damaged by medieval besiegers but by Allied bombs during the Second World War. The Nazi leadership used the Kaiserburg as a hotel for high-ranking party officials and as a venue for symbolic events. In 1945, as a result of massive bombing, the castle was ninety percent destroyed. However, the Double Chapel, built from particularly strong sandstone, was hardly damaged at all — as if history itself had preserved this sacred corner.
Post-war restoration became a true feat of the restorers. The work went on for decades, and from 1997, Bavaria invested considerable funds in the reconstruction. Today, the tourist sees the Kaiserburg as it was in the 16th century — not a crude copy, but an authentic historical complex where old stone coexists with careful modern restoration.
Architecture and Layout — Three Castles in One
As you ascend Castle Hill, it is important to understand: you are not entering a single monolithic structure but a complex ensemble of buildings that grew and was rebuilt over nine hundred years. In a broad sense, Nuremberg Castle consists of three parts.
1. The Kaiserburg — The Imperial Residence (Western Part)
This is the core of the complex, accessible with a single admission ticket. Here are the main buildings where the emperors lived and ruled.
• The Palas — the main residential building, housing the state and living quarters: the Knights` Hall, the Imperial Hall, and the passage to the Double Chapel.
• The Double Chapel — an architectural wonder of the Romanesque style, unique on a European scale.
• The Sinwell Tower (Sinwellturm) — a mighty bergfried (keep tower), which today serves as the city`s best viewpoint.
• The Kemenate — a building with living quarters and a kitchen, where the Kaiserburg Museum is now located.
2. The Burgrave`s Castle (Burggrafenburg) — The Governors` Fortress (Eastern Part)
Once, the burgraves lived here, who were constantly feuding with the emperor and the independent city. Today, only fragments of their fortress remain, but they are priceless.
• The Pentagonal Tower (Fünfeckturm) — the oldest building in Nuremberg, built around 1050. It is easily recognised by its unusual red brick superstructure and wooden oriel window, added in 1953. The second name of this tower is "Old Nuremberg".
• St. Walpurgis Chapel (Walpurgiskapelle) — a modest Romanesque chapel from the 12th–13th centuries. Today, it has been handed over to the Orthodox community, where services are held regularly. The atmosphere here is completely special — very ancient, somewhat sombre and truly prayerful.
3. The Imperial City Fortifications (Eastern Flank)
The townspeople, who trusted neither the emperor nor the burgrave, built their own defensive structures.
The Luginsland Tower — its name translates from German as "Look at the Country". It was built in 1377 with city funds specifically to spy on the hated burgrave. From its upper windows, the courtyard of his fortress was clearly visible.
The Imperial Stables (Stallung) — a long, massive building that today houses one of Nuremberg`s most popular youth hostels. Spending the night within 13th-century walls is an unusual experience for a traveller.
The Heart of the Castle — The Double Chapel
This is the most unusual and impressive structure of the Kaiserburg. The Double Chapel is built on two levels, one above the other, and this is not an accidental architectural whim but a deliberate metaphor for power and divine order.
The Lower Chapel is dark, cold, vaulted, and very modest. Here prayed the guards, servants, craftsmen, and lesser nobles. The stone walls are almost devoid of decoration, and light enters only through narrow arrow-slit windows.
The Upper Chapel, in contrast, is connected by a direct passage to the Imperial Hall. It is higher, brighter, and in cold weather it was even heated — an unthinkable luxury for the 12th century. Here the emperor prayed with his closest retinue.
The most astonishing thing is that the emperor stood on special wooden choir stalls and looked at the altar through a small opening in the stone floor. He could see the entire sacred ceremony but remained invisible to the crowd below. At the same time, the acoustic space of the chapel was shared: the emperor could clearly hear the prayers and chants of the commoners, and they could hear him.
This was a brilliant medieval engineering and political trick: "Heaven is open to all, but the emperor stands closer to God than any other mortal." Pay attention to the column capitals in the Upper Chapel — some of them have survived from the 12th century. The altar is consecrated in honour of St. Pancras, the patron saint of children and martyrs.
Towers, Wells and Halls of the Imperial Castle of Nuremberg (Kaiserburg)
In one of the small inner courtyards, under a stone canopy, hides a true engineering feat of the Middle Ages. The depth of the well is between 47 and 50 metres — almost a seventeen-storey building. It was hewn by hand directly into the rock massif, without explosives, using only chisels and picks.
The well never ran dry, even during long sieges, because its water level is connected to the groundwater of the Pegnitz River flowing in the valley. During the tour, the keepers lower a wooden ring with burning candles to the bottom. You see a tiny flame become a dot and then completely disappear into the darkness. If you throw a small stone into the well, the echo will return for a full six seconds — the sound seems to fall into the underworld.
The Round Tower Sinwellturm (Sinwell Tower)
The name comes from the Old German word "sinwel" — "perfectly round". This is a truly unique form for Nuremberg: all other city and castle towers are either square or pentagonal.
The tower`s foundation was laid under Barbarossa in the 12th century, and it was completed in the 1560s by the architect Hans Löner. The Sinwellturm served as a bergfried — a last refuge in case of an assault. In peacetime, a trumpeter from its upper platform would sound signals to the citizens during Imperial Diets.
Climbing the tower involves about two hundred steps up a narrow spiral staircase. The reward for the effort is the best panorama of Nuremberg. From here you can see the tiled roofs of the Old Town, the spires of St. Sebald`s and St. Lawrence`s churches, and even the outlines of the modern Neue Museum on the opposite bank of the Pegnitz.
The Knights` Hall and the Imperial Hall
The interiors of the Kaiserburg may disappoint those expecting baroque, stucco, and gold. The imperial court was not sedentary: it travelled from place to place, so permanent furniture was not kept in the castles. Chairs, tables, carpets, and even kitchen utensils were brought along in baggage trains, or sometimes rented from wealthy citizens — for whom this was an honourable right "to serve the sovereign".
The Knights` Hall is a huge room with a massive Gothic fireplace. Whole oxen were roasted in this fireplace for banquets of several hundred guests. The hall was used for receptions of ambassadors, formal dinners, and, less often, for war councils.
The Imperial Hall is smaller and more intimate. It was here that the fates of European provinces were decided, treaties signed, and ambassadors from Rome, Paris, and London received. In the centre of the hall is a reconstruction of the imperial throne. In the corners are the famous "whispering columns". Stand next to one and ask your companion to stand at the opposite one. You will be able to whisper and hear each other perfectly, as if on the telephone. Medieval architects knew the secret of directional acoustics.
Museum of the Imperial Castle of Nuremberg (Kaiserburg)
The museum is located in the Kemenate building — it is a branch of the Germanisches Nationalmuseum (Germanic National Museum) in Nuremberg. Admission is included in the standard ticket, and it should not be missed. If the state rooms tell the story of how they ruled, the museum answers the questions: how they lived, fought, prayed, and entertained themselves at the imperial court.
Main Sections of the Exhibition
Architectural history of the castle. Here you will find several detailed models showing how the three complexes — imperial, burgrave`s, and city — gradually merged into a single whole. You can trace how the walls, towers, and entrance gates changed over nine centuries.
Weapons and armour. One of the best collections of medieval weapons in Bavaria is presented here. Knights` swords, battle axes, crossbows, early hand cannons. The full suits of plate armour from the early 16th century deserve special attention — they are very heavy, cumbersome, yet surprisingly elegant in their details.
Siege equipment and castle defence. Fragments of catapults, battering rams, and, most interestingly, models of medieval cranes for lifting water and supplies into a besieged fortress.
Equestrian equipment. Saddles, bits, spurs, and horse armour. A reminder that the horse was the main "engine" of medieval civilisation. The imperial court on the move meant hundreds of riders and packhorses.
Science in the castle. Nuremberg was a centre of European science in the 15th–16th centuries. In the museum you can see astronomical instruments, sundials, and quadrants associated with the names of Martin Behaim and Regiomontanus.
Banquet culture. A reconstruction of a festive table: pewter and earthenware plates, glass and horn goblets, amusing salt cellars in the shape of castles and lions. Tournaments and feasts were not just entertainment but an important political demonstration of wealth and power.
Exhibition Hall "Emperor. Empire. City"
In 2013, after a long restoration, a new permanent exhibition opened in the Imperial Hall, dedicated to Nuremberg`s role in the Holy Roman Empire. Its main treasures:
The original Golden Bull of 1356 — one of the most important constitutional documents in European history. Written on parchment, sealed with golden seals (hence the name). You can admire it for a long time: both the text and the miniatures are executed at the highest artistic level.
Statue of Emperor Charles IV — a stone sculpture brought to Nuremberg from Prague. This is the original from Charles Bridge, replaced there by a copy in the 1960s. The emperor is depicted at full length, with an orb and sceptre, with a weary and wise face.
Lesser-Known but Interesting Details of the Imperial Castle of Nuremberg (Kaiserburg)
The Imperial Garden and Kunigunde`s Linden Tree
The rear courtyard of the castle has been transformed into a neat baroque garden with a fountain, neatly trimmed linden trees, and a view of the Heidenturm (Heathens` Tower). Entrance to the garden is free, making it the best place for a leisurely breather after the tour.
Swedish Soldiers` Graffiti
In 1632, during the Thirty Years` War, Swedish soldiers left their names, dates, and simple drawings on the walls of one of the towers — little ships, windmills, female profiles. Today, these "autographs" have been preserved under a layer of varnish. This is not vandalism but living history, the rough voice of the 17th century, bursting into the holy of holies of imperial grandeur.
The Quartz Clock of the 15th Century
In 1487, by order of Emperor Frederick III, a complex mechanism with tin pipes was installed on the Sinwell Tower. Every hour, the pipes played a short melody that could be heard far beyond the castle walls. For a medieval person, hearing musical chimes was almost a miracle, comparable to a spacecraft today.
The Colour and Letter System for Illiterate Guards
All the gates and towers of Nuremberg, including those of the castle, were marked in the Middle Ages with letters of the Latin alphabet and four colours: black, blue, red, and green. If an enemy attacked "blue D", the guard would shout exactly that, and all the townspeople would understand where to run. Even an illiterate militiaman would memorise colours faster than letters. The Luginsland Tower, for example, was "green O".
Visiting the Kaiserburg is the quintessence of the Nuremberg experience. History, architecture, panoramas, and museum rarities are combined here in perfect proportion. After the castle, the Old Town will appear different to you: you will recognise the towers from various angles, understand where the medieval walls ran, and feel that very imperial pride that the inhabitants of this city have felt for centuries.
