An imperial castle or Reichsburg was a castle built by order of (or acquired by) the King of the Romans or the Holy Roman Emperor on land that was owned by the crown (Reichsgut).
While in the early middle ages, in Francia, as well as in the early Holy Roman Empire, kings and emperors travelled around their realm with their itinerant courts , using their Kaiserpfalzen (imperial palaces) as transit stations and temporary residences, the weakly fortified pfalzen were replaced by imperial castles from the 13th century onwards. However, the stronger fortification of palaces had already begun in the Hohenstaufen period, as shown by the 3D reconstruction of the castle-like imperial pfalz of Haguenau designed by emperor Frederick Barbarossa in the middle of the 12th century. [1]
After the fall of the Hohenstaufen dynasty, the royal power temporarily lapsed during the interregnum. One weak king after another was elected, but no one was able to exercise sovereign power. Princes and bishops tried to expand their territories. They oppressed less powerful nobles, fought the urban rulers (patricians and guilds), illegally seized imperial fiefdoms, introduced customs duties, new taxes and even royal regalia . Feuds, the law of the fist and robber barons escalated. In this situation, the barely fortified pfalzen no longer offered sufficient security to the German kings. Most were abandoned, repurposed by cities or local princes, disappeared under new development or fell into disrepair.
Instead of the pfalzen, the heavily fortified imperial castles were built, which - unlike the pfalzen, which were usually located in towns, lowlands, valleys or on river banks - were often hilltop castles like Nuremberg Castle or Trifels Castle. Many imperial castles were built in regions such as Swabia, Franconia, the Palatinate and the Alsace, where there were a high density of imperial estates (Reichsgüter) during the Hohenstaufen era. However, kings also liked to stay in free imperial cities loyal to them.
In France and England, from the 13th century onwards, stationary royal residences had begun to develop into capital cities that grew rapidly and developed corresponding infrastructure: the Palais de la Cité and the Palace of Westminster became the respective main residences. This was not possible in the Holy Roman Empire because no real hereditary monarchy emerged, but rather the tradition of elective monarchy prevailed (see: Imperial election) which, in the High Middle Ages, led to kings of very different regional origins being elected (List of royal and imperial elections in the Holy Roman Empire). However, if they wanted to control the empire and its rebellious regional rulers, they could not limit themselves to their home region and their private palaces. As a result, kings and emperors continued to travel around the empire well into modern times. [2]
The management of the imperial castles, including its surrounding land with its dependants, was entrusted to ministerialis or Burgmannen who were called Reichsministerialen (imperial ministerialis) in this case.
The Imperial Crown of the Holy Roman Empire, a hoop crown with a characteristic octagonal shape, was the coronation crown of the Holy Roman Emperor, probably from the late 10th century until the dissolution of the Holy Roman Empire in 1806. The crown was used in the coronation of the King of the Romans, the title assumed by the Emperor-elect immediately after his election. It is now kept in the Imperial Treasury at the Hofburg in Vienna, Austria.
Haguenau is a commune in the Bas-Rhin department of France, of which it is a sub-prefecture.
Nuremberg Castle is a group of medieval fortified buildings on a sandstone ridge dominating the historical center of Nuremberg in Bavaria, Germany.
The Imperial Regalia, also called Imperial Insignia, are regalia of the Holy Roman Emperor. The most important parts are the Crown, the Imperial orb, the Imperial sceptre, the Holy Lance and the Imperial Sword. Today they are kept at the Imperial Treasury in the Hofburg palace in Vienna, Austria.
The Battle of Welfesholz was fought on 11 February 1115 between the Imperial army of the Emperor Henry V and a rebellious Saxon force.
Pleissnerland, Pleissenland or the Imperial Territory of Pleissenland was a Reichsgut of the Holy Roman Empire, which meant that it was directly possessed by the respective elected King of the Romans or Emperor. It was named for the Pleiße River, and was located in what is now the border region between the German states of Thuringia and Saxony south of Leipzig, including the towns of Altenburg, Chemnitz, Zwickau and Leisnig.
The term Kaiserpfalz or Königspfalz refers to a number of palaces and castles across the Holy Roman Empire that served as temporary seats of power for the Holy Roman Emperor in the Early and High Middle Ages.
"Barbarossa city" is a nickname for German cities that the Staufer Emperor Frederick Barbarossa stayed in or near for some time. The cities usually mentioned include Sinzig, Kaiserslautern, Gelnhausen, Altenburg, Bad Frankenhausen, but Annweiler am Trifels, Bad Wimpfen, Eberbach and Waiblingen consider themselves as such as well.
Trifels Castle is a reconstructed medieval castle at an elevation of 500 m (1,600 ft) near the small town of Annweiler, in the Palatinate region of southwestern Germany. It is located high above the Queich valley within the Palatinate Forest on one peak of a red sandstone mountain split into three. Trifels Castle is on the peak of the Sonnenberg, and on both of the other two rock elevations there are castle ruins: Anebos Castle and Scharfenberg Castle.
Herman(n) of Salm, also known as Herman(n) of Luxembourg, the progenitor of the House of Salm, was Count of Salm and elected German anti-king from 1081 until his death.
Conrad of Scharfenberg was a German cleric who became bishop of Speyer and later, simultaneously, bishop of Metz (1212–1224). He came from a family of knights who served the Holy Roman Empire from the area around Trifels Castle. His family castle was Scharfenburg.
A palas is a German term for the imposing or prestigious building of a medieval Pfalz or castle that contained the great hall. Such buildings appeared during the Romanesque period and, according to Thompson, are "peculiar to German castles".
The Kyburg family was a noble family of grafen (counts) in the Duchy of Swabia, a cadet line of the counts of Dillingen, who in the late 12th and early 13th centuries ruled the County of Kyburg, corresponding to much of what is now Northeastern Switzerland.
Henry VI, a member of the Hohenstaufen dynasty, was King of Germany from 1169 and Holy Roman Emperor from 1191 until his death. From 1194 he was also King of Sicily.
The Free Imperial City of Nuremberg was a free imperial city – independent city-state – within the Holy Roman Empire. After Nuremberg gained piecemeal independence from the Burgraviate of Nuremberg in the High Middle Ages and considerable territory from Bavaria in the Landshut War of Succession, it grew to become one of the largest and most important Imperial cities, the 'unofficial capital' of the Empire, particularly because numerous Imperial Diets and courts met at Nuremberg Castle between 1211 and 1543. Because of the many Diets of Nuremberg, Nuremberg became an important routine place of the administration of the Empire during this time. The Golden Bull of 1356, issued by Emperor Charles IV, named Nuremberg as the city where newly elected kings of Germany must hold their first Imperial Diet, making Nuremberg one of the three highest cities of the Empire.
Wetterau Association of Imperial Counts was an association of comital families in the Wetterau and surrounding areas. It originated in the late Middle Ages and was formally disbanded when the Holy Roman Empire was dissolved in 1806.
The Ingelheim Imperial Palace was an important imperial palace erected in the second half of the 8th century in Germany. It served kings of Francia and later Holy Roman Emperors and Kings as a residenz and place for governance until the 11th century.
The Imperial Palace at Gelnhausen, in German also called the Kaiserpfalz Gelnhausen, Pfalz Gelnhausen or Barbarossaburg, is located on the Kinzig river – originally on an island –, in the town of Gelnhausen, Hesse, Germany.
Hiltpoltstein Castle was originally a high mediaeval aristocratic castle dating to the 11th or 12th century. It stands in the centre of the market village of Markt Hiltpoltstein in the Upper Franconian county of Forchheim in the south German state of Bavaria. Its present appearance as a triple-winged building goes back to renovations carried out at the end of the 16th century.
In the Holy Roman Empire, the Great Interregnum was a period of time following the death of Frederick II where the succession of the Holy Roman Empire was contested and fought over between pro- and anti-Hohenstaufen factions. Starting around 1250 with the death of Frederick II, conflict over who was the rightful emperor and King of the Romans would continue into the 1300s until Charles IV of Luxembourg was elected emperor and secured succession for his son Wenceslaus. This period saw a multitude of emperors and kings be elected or propped up by rival factions and princes, with many kings and emperors having short reigns or reigns that became heavily contested by rival claimants.