The Principality of Calenberg was a dynastic division of the
Welf Duchy of Brunswick-Lüneburg
The Duchy of Brunswick and Lüneburg (), commonly known as the Duchy of Brunswick-Lüneburg or Brunswick-Lüneburg, was an imperial principality of the Holy Roman Empire in the territory of present day Lower Saxony.
In 1235, Otto I, Duke of ...
established in 1432. Calenberg was ruled by the
House of Hanover
The House of Hanover ( ) is a European royal house with roots tracing back to the 17th century. Its members, known as Hanoverians, ruled Hanover, Great Britain, Ireland, and the British Empire at various times during the 17th to 20th centurie ...
(from the
Principality of Lüneburg
The Principality of Lüneburg (later also referred to as Celle) was a territorial division of the Duchy of Brunswick-Lüneburg within the Holy Roman Empire, immediately subordinate to the emperor. It existed from 1269 until 1705 and its territory ...
) from 1635 onwards; the princes received the ninth
electoral dignity
The prince-electors ( pl. , , ) were the members of the Electoral College (Holy Roman Empire), Electoral College of the Holy Roman Empire, which elected the Holy Roman Emperor. Usually, half of the electors were archbishops.
From the 13th cen ...
of the
Holy Roman Empire
The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
in 1692. Their territory became the nucleus of the
Electorate of Hanover
The Electorate of Hanover ( or simply ''Kurhannover'') was an Prince-elector, electorate of the Holy Roman Empire located in northwestern Germany that arose from the Principality of Calenberg. Although formally known as the Electorate of Brun ...
, ruled in
personal union
A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
with the
Kingdom of Great Britain
Great Britain, also known as the Kingdom of Great Britain, was a sovereign state in Western Europe from 1707 to the end of 1800. The state was created by the 1706 Treaty of Union and ratified by the Acts of Union 1707, which united the Kingd ...
from 1714 onwards. The principality received its name from
Calenberg Castle, a residence of the Brunswick dukes.
Territory

When
Eric I, Duke of Brunswick-Lüneburg chose the Principality of Calenberg as his part of the inheritance in 1495, he described it as "the land between the River
Leine
The Leine (; Old Saxon ''Lagina'') is a river in Thuringia and Lower Saxony, Germany. It is a left tributary of the Aller and the Weser and is long.
The river's source is located close to the town of Leinefelde in Thuringia. About downriver ...
and the
Deister
The Deister () is a chain of hills in the Germany, German state of Lower Saxony, about 15 mi (25 km) southwest of the city of Hanover. It runs in a north-westerly direction from Springe in the south to Rodenberg in the north. The next i ...
". This geographical description, however, was never totally correct. In fact, the principality extended west of the Leine from Schulenburg as far as
Neustadt am Rübenberge
Neustadt am Rübenberge (; ) is a town in the Hanover (district), district of Hannover, in Lower Saxony, Germany. At , it is the 9th largest settlement in Germany by area (following Berlin, Hamburg and Cologne), though only about 45,000 inhabita ...
in the north and thus much further north than the foothills of the Deister. To the south-west the territory stretched as far as
Hamelin
Hameln ( ; ) is a town on the river Weser in Lower Saxony, Germany. It is the capital of the district of Hameln-Pyrmont and has a population of roughly 57,000. Hamelin is best known for the tale of the Pied Piper of Hamelin.
History
Hameln ...
on the
Weser
The Weser () is a river of Lower Saxony in north-west Germany. It begins at Hannoversch Münden through the confluence of the Werra and Fulda. It passes through the Hanseatic city of Bremen. Its mouth is further north against the ports o ...
, well beyond the Deister.
The city of
Hanover
Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...
was largely independent of
Welf territorial lordship, even though it was not formally a
free imperial city. Not until
George of Calenberg, who had been a successful general in the
Thirty Years War
The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine, or disease, whil ...
, chose the city as his ''
Residenz'' in 1636 could Hanover also be viewed as part of the Principality of Calenberg.
Calenberg Castle was demolished and slighted between 1692 and 1694.
Because of the link that had existed since 1463 between the principalities of Calenberg and
Göttingen
Göttingen (, ; ; ) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. According to the 2022 German census, t ...
, the latter was also sometimes referred to as Calenberg. Today the term
Calenberg Land is usually only used for the region between Hanover and the Deister.
History
Origins and foundation of Calenberg Castle

Originally the territory belonged to the
Duchy of Saxony
The Duchy of Saxony () was originally the area settled by the Saxons in the late Early Middle Ages, when they were subdued by Charlemagne during the Saxon Wars from 772 CE and incorporated into the Carolingian Empire (Francia) by 804. Upon the 84 ...
but in 1180, after the
imperial ban
The imperial ban () was a form of outlawry in the Holy Roman Empire. At different times, it could be declared by the Holy Roman Emperor, by the Imperial Diet, or by courts like the League of the Holy Court (''Vehmgericht'') or the '' Reichskammerg ...
had been imposed on the
Welf prince,
Henry the Lion, he lost his ducal lands in Saxony and Bavaria. However, in 1235, Henry's grandson,
Otto the Child, was promoted to the rank of prince as a result of the reconciliation between the Houses of
Hohenstaufen
The Hohenstaufen dynasty (, , ), also known as the Staufer, was a noble family of unclear origin that rose to rule the Duchy of Swabia from 1079, and to royal rule in the Holy Roman Empire during the Middle Ages from 1138 until 1254. The dynast ...
and
Welf and was given the
allodial estates of the family claimed by them in the area between
Lüneburg
Lüneburg, officially the Hanseatic City of Lüneburg and also known in English as Lunenburg, is a town in the German Bundesland (Germany), state of Lower Saxony. It is located about southeast of another Hanseatic League, Hanseatic city, Hambur ...
and
Brunswick as the new and independent
Duchy of Brunswick-Lüneburg
The Duchy of Brunswick and Lüneburg (), commonly known as the Duchy of Brunswick-Lüneburg or Brunswick-Lüneburg, was an imperial principality of the Holy Roman Empire in the territory of present day Lower Saxony.
In 1235, Otto I, Duke of ...
. In the region west of Hanover, the Welfs had but few allodial possessions and so that area was disputed between the House of Welf and the bishops of
Hildesheim
Hildesheim (; or ; ) is a city in Lower Saxony, in north-central Germany with 101,693 inhabitants. It is in the district of Hildesheim (district), Hildesheim, about southeast of Hanover on the banks of the Innerste River, a small tributary of t ...
and
Minden
Minden () is a middle-sized town in the very north-east of North Rhine-Westphalia, Germany, the largest town in population between Bielefeld and Hanover. It is the capital of the district () of Minden-Lübbecke, situated in the cultural region ...
. It was largely ruled by comital dynasties, such as the counts of
Wölpe in the northwest, the counts of
Hallermund in the southwest and the counts of Rhoden in the west and in Hanover.
In 1292 Duke
Otto the Strict from the
Lüneburg line of the Welfs subjugated the region. Earlier, he had yielded to the Bishop of Hildesheim and accepted the city of Hanover as his fief. However, he shook off his allegiance and founded
Calenberg Castle, just 13 km west of
Hildesheim
Hildesheim (; or ; ) is a city in Lower Saxony, in north-central Germany with 101,693 inhabitants. It is in the district of Hildesheim (district), Hildesheim, about southeast of Hanover on the banks of the Innerste River, a small tributary of t ...
, in a countermove in order to further reduce the power of the Bishop of Hildesheim in the Hanover area.
Administratively, this area was initially still called the ''
Vogt
An , sometimes simply advocate, (German, ), or (French, ), was a type of medieval office holder, particularly important in the Holy Roman Empire, who was delegated some of the powers and functions of a major feudal lord, or for an institutio ...
ei'' of Lauenrode, after
Lauenrode Castle on the outskirts of Hanover, from where, the Welfs ruled the territory. With the extinction of the Lüneburg line of the Welfs, the
Lüneburg War of Succession, broke out (1371–88) during which Lauenrode Castle was stormed by the citizens of Hanover and destroyed. The ''Vogtei'' was then moved to Calenberg Castle.
Welf inheritance divisions
The Welf dukes did not inherit their land by
primogeniture
Primogeniture () is the right, by law or custom, of the firstborn Legitimacy (family law), legitimate child to inheritance, inherit all or most of their parent's estate (law), estate in preference to shared inheritance among all or some childre ...
and this resulted in the late
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
in numerous Welf estates and a great fragmentation of Welf territory. In 1400 the ''Vogtei'' of Calenberg went to the
Wolfenbüttel line of the Welfs. In 1408 and 1409 they were able to purchase the county of
Everstein and the lordship of
Homburg after the extinction of their reigning families. These were added to the ''Vogtei'' of Calenberg. In a further Welf inheritance in 1432 - the ninth according to Gudrun Pischke - the area was divided again by the Welf dukes
William the Victorious
William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is ...
and
Henry the Peaceful who had hitherto ruled jointly in the
Principality of Brunswick-Wolfenbüttel. While Henry retained the Wolfenbüttel lands, William was compensated with the newly created Principality of Calenberg. At that time, the lordship given to William had no name. It consisted of the rights formerly owned by the
Principality of Lüneburg
The Principality of Lüneburg (later also referred to as Celle) was a territorial division of the Duchy of Brunswick-Lüneburg within the Holy Roman Empire, immediately subordinate to the emperor. It existed from 1269 until 1705 and its territory ...
between the Deister range and the Leine river, as well as the former
County of Wölpe, the lordship of Hallermund near
Springe and the Homburg and Everstein dominions.
As the Welf princes all carried the ducal title and the territories they ruled were principalities within the
Duchy of Brunswick-Lüneburg
The Duchy of Brunswick and Lüneburg (), commonly known as the Duchy of Brunswick-Lüneburg or Brunswick-Lüneburg, was an imperial principality of the Holy Roman Empire in the territory of present day Lower Saxony.
In 1235, Otto I, Duke of ...
, their dominions were named after the main castle or town. William spent most of his time at Calenberg Castle from where he administered the territory. As a result, it is probable that the name of the Principality of Calenberg emerged during this time.
Unification with Göttingen
Between 1442 and 1463 William succeeded in taking over the rule over the Brunswick
Principality of Göttingen. Although unification with Calenberg initially came about purely by chance, it lasted nonetheless. In order to distinguish the two areas which were physically separated by the foothills of the uplands in the Leine valley, Calenberg in the north was usually referred to as ''Unterwald'' ("Lower Forest"), whilst the Göttingen region was called the ''Oberwald'' ("Upper Forest"). When in 1473 William also inherited the Principality of Wolfenbüttel from his brother Henry who had left no heirs, he ceded sovereignty over Calenberg to his sons
William the Younger and
Frederick III, known as "the Restless" or "Turbulentus".
After the death of William the Victorious in 1482 both sons shared the regency. In an agreement dated 1 August 1483, however, they split the rights of use (''Mutschierung''). The younger son, Frederick the Restless, was awarded the rights of use over Calenberg and Göttingen, and his brother William the Younger was awarded the rule over Wolfenbüttel. Nevertheless, in 1484/85 William deposed his brother Frederick and declared him insane. The reasons for his removal are debated; perhaps by his participation in many armed conflicts, Frederick was seen to pose a threat to Welf rule in Calenberg and Göttingen. So William succeeded - albeit only briefly - in re-uniting the entire territory of the principalities of Calenberg, Brunswick-Göttingen and
Brunswick-Wolfenbüttel. After Frederick's death in 1495, however, William again divided his territories and left the Principality of Brunswick-Wolfenbüttel to his elder son
Henry V.
Under Eric I, Elisabeth and Eric II

The younger son,
Eric I received Calenberg and Göttingen and thus founded the Calenberg line of the
House of Brunswick-Lüneburg. In the new territory so formed, the name Calenberg was increasingly used for both parts of the state. For the period under Eric I and his son,
Eric II, however, the name "Principality of Calenberg-Göttingen" was also used a lot. The principality had separate parliamentary Estates and separate councils for each part. The chancellery for ''Unterwald'' was established in Neustadt on Rübenberge and that for ''Oberwald'' in Münden. There were also separate residences, lordly castles or manor houses and palaces in each town as well as separate repositories for their records.
Under Eric I,
Calenberg Castle was expanded into a strong fortress. Another heavily fortified castle, which he had built, was the
Erichsburg near
Dassel on which construction began in 1527. In the
Hildesheim Diocesan Feud in 1519 he was initially defeated militarily in the
Battle of Soltau. Diplomatically, however, he was able to win a ruling from the Emperor
Charles V that saw a large part of the
Prince-Bishopric of Hildesheim added to his domain.
Eric I was hostile to the emerging
Protestant Reformation
The Reformation, also known as the Protestant Reformation or the European Reformation, was a time of major theological movement in Western Christianity in 16th-century Europe that posed a religious and political challenge to the papacy and ...
. His second wife,
Elisabeth of Brandenburg, however, whom he married in 1525, switched over to the new doctrine in 1535 and promoted it at the court, which then resided at
Münden. After Eric's death in 1540 she took over the government for their underage son, Eric II, and implemented the Reformation in the principality with the state superintendent
Antonius Corvinus she had appointed. Eric II, however, converted to Roman Catholicism in 1547 even though he was raised as an Evangelical by his mother. He was not able to reverse the Reformation in the principality however. His power in the principality was already very weak. He spent most of his time as a mercenary leader abroad, and was financially dependent on the towns. In 1553 he had to secure the financial aid of his towns by approving evangelical preaching. From 1574 he had
Neustadt am Rübenberge
Neustadt am Rübenberge (; ) is a town in the Hanover (district), district of Hannover, in Lower Saxony, Germany. At , it is the 9th largest settlement in Germany by area (following Berlin, Hamburg and Cologne), though only about 45,000 inhabita ...
developed as a fortified town and built
Landestrost Castle within its walls as a Renaissance chateau, integrated into a bastion fortress based on the Italian model.
In 1582 when the
counts of Hoya died out, the larger part of the county went to Calenberg. In 1584 Calenberg also acquired the
Diepholz
Diepholz (; Northern Low Saxon: ''Deefholt'') is a town and capital of the district of Diepholz in Lower Saxony, Germany. It is situated on the rivers Hunte and Lohne, approximately 45 km northeast of Osnabrück, and 60 km southwes ...
.
Thirty Years' War
After Eric's death in 1584 Calenberg-Göttingen was again ruled by the
Wolfenbüttel line of the Welfs. In the
Thirty Years' War
The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in History of Europe, European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine ...
the brother of Duke
Frederick Ulrich,
"mad" Christian, brought the war to the state. After Danish troops under King
Christian IV, who was then commander of the
Lower Saxon Circle
The Lower Saxon Circle () was an Imperial Circle of the Holy Roman Empire. It covered much of the territory of the medieval Duchy of Saxony (except for Westphalia), and was originally called the Saxon Circle () before later being better differen ...
, was defeated by the general of the
Catholic League,
Tilly in the
Battle of Lutter
The Battle of Lutter (German language, German: ''Lutter am Barenberge'') took place on 27 August 1626 during the Thirty Years' War, south of Salzgitter, in Lower Saxony. A combined Danish-German force led by Christian IV of Denmark was defeated ...
, Tilly occupied the whole principality in 1626. Only the cities of Brunswick and Hanover could not be captured.
When Duke Frederick Ulrich died childless in 1634 the Wolfenbüttel line of the Middle House of Brunswick ended with him. In 1635 Duke
Augustus the Elder from the Middle House of Lüneburg received the Principality of Calenberg-Göttingen. After his death in 1636 his younger brother
George became its ruler. He was successful as a general on the Swedish side and he also succeeded in 1637 in recovering the country and especially the towns for the Welfs. He initially ruled out of occupied Hildesheim, but then moved his residence to
Hanover
Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...
, which he also had built as a fortress. He had the former
Franciscan
The Franciscans are a group of related organizations in the Catholic Church, founded or inspired by the Italian saint Francis of Assisi. They include three independent Religious institute, religious orders for men (the Order of Friars Minor bei ...
friary
A monastery is a building or complex of buildings comprising the domestic quarters and workplaces of monastics, monks or nuns, whether living in communities or alone (hermits). A monastery generally includes a place reserved for prayer which may ...
, built around 1300, converted into the
Leineschloss, which from then on served as a residence for the sovereigns of the principality. After his death in 1641 a separate peace was hastily concluded with the emperor, which had to be paid for by the return of the land acquired during the
Hildesheim Diocesan Feud. George's sons,
Christian Louis,
George William,
John Frederick and
Ernest Augustus then ruled the Principality of Calenberg-Göttingen in succession.
Elevation to an electorate
In 1665 the
Principality of Grubenhagen, whose line had died out in 1596 and over which the lines of Lüneburg and Wolfenbüttel had long fought in the
Imperial Chamber Court, was also finally added to the Calenberg dynasty. George's youngest son,
Ernest Augustus, who ruled from 1679, carried on the successful policies of his father and his brothers. In 1689 the Calenbergs also inherited
Saxe-Lauenburg
The Duchy of Saxe-Lauenburg (, ), was a ''reichsfrei'' duchy that existed from 1296 to 1803 and again from 1814 to 1876 in the extreme southeast region of what is now Schleswig-Holstein. Its territorial centre was in the modern district of Herz ...
. Ernest Augustus switched to the side of the emperor and introduced
primogeniture
Primogeniture () is the right, by law or custom, of the firstborn Legitimacy (family law), legitimate child to inheritance, inherit all or most of their parent's estate (law), estate in preference to shared inheritance among all or some childre ...
, contrary to the direction of his father. In 1692 for his services to the emperor, Ernest Augustus was rewarded after a long struggle with the title of the ninth
electorate
Electorate may refer to:
* The people who are eligible to vote in an election, especially their number e.g. the term ''size of (the) electorate''
* The dominion of a prince-elector in the Holy Roman Empire until 1806
* An electoral district
...
. Officially he was now the
Elector of Brunswick-Lüneburg and his government was called the "Electoral Brunswick-Lüneburg Government".
["the electors themselves placed great value on the title "Brunswick-Lüneburg", a description which is almost always used in the official titles and documents of the electorate, Niemeyer / Ortenburg 1976: 7. Unofficially, it was also referred to as the Electorate of Hanover or ''Kurhannover''] In 1705 it was enhanced further by the inheritance of the
Principality of Lüneburg
The Principality of Lüneburg (later also referred to as Celle) was a territorial division of the Duchy of Brunswick-Lüneburg within the Holy Roman Empire, immediately subordinate to the emperor. It existed from 1269 until 1705 and its territory ...
, whereby all the estates of the Welfs, apart from the Principality of Brunswick-Wolfenbüttel, became united under the line also known as the
House of Hanover
The House of Hanover ( ) is a European royal house with roots tracing back to the 17th century. Its members, known as Hanoverians, ruled Hanover, Great Britain, Ireland, and the British Empire at various times during the 17th to 20th centurie ...
from which the British royal throne are descended.
Economic and social history
The Principality of Calenberg was initially a rather insignificant territory and Welf lordship developed here quite late. By the reign of George of Calenberg in 1636, the principality had experienced 140 years of almost continuously poor government that cared little about the state. In the
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
and the
Renaissance
The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...
the cultural centres lay outside Calenberg in the towns of
Brunswick,
Hildesheim
Hildesheim (; or ; ) is a city in Lower Saxony, in north-central Germany with 101,693 inhabitants. It is in the district of Hildesheim (district), Hildesheim, about southeast of Hanover on the banks of the Innerste River, a small tributary of t ...
and
Lüneburg
Lüneburg, officially the Hanseatic City of Lüneburg and also known in English as Lunenburg, is a town in the German Bundesland (Germany), state of Lower Saxony. It is located about southeast of another Hanseatic League, Hanseatic city, Hambur ...
. New centres were created at the residences of
Wolfenbüttel
Wolfenbüttel (; ) is a town in Lower Saxony, Germany, the administrative capital of Wolfenbüttel District
Wolfenbüttel (; ) is a town in Lower Saxony, Germany, the administrative capital of Wolfenbüttel (district), Wolfenbüttel Distri ...
and
Celle. Even the city of
Hanover
Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...
was not governed by the Calenberg princes until 1636. The other towns remained unimportant.
Only after the reign of George of Calenberg and its subsequent elevation to the electorate did the former Principality of Calenberg become the nucleus of what later became the German state of
Lower Saxony
Lower Saxony is a States of Germany, German state (') in Northern Germany, northwestern Germany. It is the second-largest state by land area, with , and fourth-largest in population (8 million in 2021) among the 16 ' of the Germany, Federal Re ...
.
Princes of Calenberg
References
Sources
* Güßfeld, Ludwig; Erben, Homann (1786/2002). ''Die Fürstenthümer Grubenhagen, Calenberg, Wolfenbüttel und Blankenburg 1786.'' Verlag Rockstuhl, Bad Langensalza, Reprint 1786/2002, (Historic map)
*
Historisches Museum Hannover (1979). ''Calenberg – Von der Burg zum Fürstentum''. Hanover
* Hauptmeyer, Carl-Hans (1983) ''Calenberg – Geschichte und Gesellschaft einer Landschaft''. Hanover
* Havemann, Wilhelm (1974/75). ''Geschichte der Lande Braunschweig und Lüneburg.'' 3 volumes. Reprint. Hirschheydt, Hanover 1974/75, (Original edition: Verlag der Dietrich'schen Buchhandlung, Göttingen 1853-1857)
* Kalthof, Edgar (1982). ''Geschichte des südniedersächsischen Fürstentums Göttingen und des Landes Calenberg im Fürstentum Calenberg 1285–1584'', Verlag Otto Zander, Herzberg (Harz)-Pöhlde,
* Patze, Hans (Begr.) (1977). ''Geschichte Niedersachsen.'' 7 volumes. Hahnsche Buchhandlung, Hanover (Veröffentlichungen der Historischen Kommission für Niedersachsen und Bremen, 36)
Overview by the publishers
* Pischke, Gudrun (1987). ''Die Landesteilungen der Welfen im Mittelalter.'' Lax, Hildesheim,
{{DEFAULTSORT:Principality Of Calenberg
Calenberg
Calenberg
1490s establishments in the Holy Roman Empire
1494 establishments in Europe
1705 disestablishments in the Holy Roman Empire
Early modern history of Germany
Former monarchies of Europe
Former principalities
States and territories disestablished in the 1690s