Principality of Lithuania

The Electorate of Brunswick-Lüneburg (Kurfürstentum Braunschweig-Lüneburg), colloquially Electorate of Hanover (Kurfürstentum Hannover or simply Kurhannover), was established in 1692 as the ninth Electorate of the Holy Roman Empire.

It was ruled by the House of Hanover, a cadet branch of the House of Welf, which then ruled and earlier had ruled a number of principalities, which had several times been partitioned among several heirs from the Duchy of Brunswick-Lüneburg. After 1705, only two of these territories existed. One was the Principality of Brunswick-Wolfenbüttel, which remained independent as the Duchy of Brunswick (new title adopted in 1815) until 1918. The other, the new Electorate, was based on the dynastic line of the Principality of Calenberg.

With the ascension of its prince-elector as King of Great Britain in 1714, it became ruled in personal union with Great Britain. As a consequence, a reluctant Great Britain was forced time and again to become involved with the fate of the German possessions of its King. However, internally, it remained a separately ruled territory with its own government and bodies. Merged into the Napoleonic Kingdom of Westphalia in 1807, it was re-established as the Kingdom of Hanover in 1814, with the personal union with the British crown lasting until 1837.

Official name and other name versions
In 1692, Emperor Leopold I elevated Duke Ernest Augustus of the Brunswick-Lüneburg line of Calenberg, to the rank of prince-elector of the Empire as a reward for aid given in the Nine Years' War. There were protests against the addition of a new elector, and the elevation did not become official until the approval of the Imperial Diet in 1708. Calenberg's capital Hanover became colloquially eponymous for the electorate; however, officially it used the name Chur-Braunschweig-Lüneburg of the entire ducal dynasty.

Geography
The electorate comprised large parts of the modern German state of Lower Saxony in Northern Germany. Beside the Principality of Calenberg it also included the former princely lands of Göttingen and Grubenhagen as well as the territory of the former County of Hoya.

In 1705 Elector George I Louis inherited the Principality of Lüneburg with the Duchy of Saxe-Lauenburg upon the death of his uncle Duke George William of Brunswick-Lüneburg. In 1715 he purchased the Duchies of Bremen-Verden from King Frederick IV of Denmark (confirmed by the 1719 Treaty of Stockholm), whereby his former landlocked electorate gained access to the North Sea.

In 1700 the territories forming the electorate introduced – like all Protestant territories of imperial immediacy – the Improved Calendar, as it was called by Protestants, in order not to mention the name of Pope Gregory XIII. So Sunday, the 18 February of Old Style was followed by Monday, the 1 March New Style.

Link with Britain
In 1714, George Louis became king of Great Britain, so that the electorate and Great Britain were ruled in personal union. The possessions of the electors in Germany also grew, as they de facto purchased the formerly Swedish-held duchies of Bremen and Verden in 1719.

George Louis died in 1727, and was succeeded by his son George II Augustus. In 1728 Emperor Charles VI officially enfeoffed George II (i.e. gave him land in exchange for a pledge of service), with the reverted fief of Saxe-Lauenburg, which had de facto been ruled in personal union with Hanover and its one preceding Principality of Lüneburg since 1689.

In 1731 Hanover also gained Hadeln, a former exclave of Saxe-Lauenburg (since 1689 in imperial custodianship), conveying it to Bremen-Verden. It took George II Augustus until 1733 to persuade Charles VI to enfeoff him also with the Duchy of Bremen and the Principality of Verden, colloquially called Duchies of Bremen-Verden. At both enfeoffments George II Augustus swore that he would respect the existing privileges and constitutions of the estates in Bremen-Verden and in Hadeln, thus confirming 400-year-old traditions of estate participation in government.

In Hanover, the capital of the Electorate, the Privy Council of Hanover (electoral government) installed a new ministry in charge of the Imperial Estates ruled by the Electors in personal union. It was called the Department of Bremen-Verden, Hadeln, Lauenburg and Bentheim. However the Electors spent most of their time in England. Direct contact with the Electorate was maintained through the office of the German Chancery, situated in St James's Palace in London.

Seven Years' War
During the Anglo-French and Indian War (1754–63) in the North American colonies, Britain feared a French invasion in Hanover. George II formed an alliance with his Brandenburg-Prussian cousin Frederick II, "the Great" combining the North American conflict with the Brandenburg-Prusso–Austrian Third Silesian or Seven Years' War (1756–63).

In summer 1757 the French invaded Hanover and defeated George II's son Prince William, Duke of Cumberland, leading the Anglo-Hanoverian army, at the Battle of Hastenbeck and drove him and his army into remote Bremen-Verden, where in the former Zeven de he capitulated on 18 September (Convention of Kloster-Zeven). But George II did not recognise the convention. In the following year the British army, supported by troops from Brandenburg-Prussia, Hesse-Kassel and the ducal Principality of Brunswick and Lunenburg (Wolfenbüttel) again expelled the occupants.

Hanover remained unaffected for the rest of the war. After the war ended, peace prevailed until the French Revolutionary Wars started. The War of the First Coalition against France (1793–97) with Great Britain-Hanover and other war allies forming the coalition, did not affect Hanoverian territory, since the first French Republic was fighting on several fronts, even on its own territory. However, men were drafted to recruit the 16,000 Hanoverian soldiers fighting in the Low Countries under British command against France. In 1795 the Holy Roman Empire declared its neutrality, including Hanover; however, a peace treaty with France was under negotiation until it failed in 1799. Brandenburg-Prussia, however, ended for its part the war with France by the Treaty of Basel (1795), stipulating that Brandenburg-Prussia would ensure the Holy Roman Empire's neutrality in all the latter's territories north of the demarcation line of the river Main, including the British continental dominions of Hanover, Bremen-Verden, and Saxe-Lauenburg. To this end Hanover also had to provide troops for the so-called demarcation army maintaining the armed neutrality.

Napoleonic era
During the War of the Second Coalition against France (1799–1802) Napoléon Bonaparte urged Brandenburg-Prussia to occupy the continental British dominions. In 1801 24,000 Brandenburg-Prussian soldiers invaded, surprising Hanover, which surrendered without a fight. In April 1801 the Brandenburg-Prussian troops arrived in Bremen-Verden's capital, Stade, and stayed there until October that year. The British first ignored Brandenburg-Prussia's hostility, but when the latter joined the pro-French coalition of armed neutral powers including Denmark-Norway and Russia, Britain began to capture Brandenburg-Prussian ships. After the Battle of Copenhagen (1801) the coalition fell apart and Brandenburg-Prussia withdrew its troops.

As part of the German Mediatisation of 25 February 1803, the Electorate received the Prince-Bishopric of Osnabrück in real union, whose every second ruler had been alternately members of the House of Hanover since 1662.

After Britain – this time without any allies – had declared war on France (18 May 1803), French troops invaded Hanover on 26 May. According to the Convention of Artlenburg (5 July 1803), confirming the military defeat of Hanover, the Hanoverian army was disarmed and its horses and ammunitions were handed over to the French. The Privy Council of Hanover, with minister Friedrich Franz Dieterich von Bremer holding up the Hanoverian stake, fled to Saxe-Lauenburg across the Elbe, ruled by Britain-Hanover in personal union. Soon afterwards the French also occupied Saxe-Lauenburg.

In autumn 1805, at the beginning of the War of the Third Coalition against France (1805–6), the French occupying troops left Hanover in a campaign against Austria. British, Swedish and Russian coalition forces captured Hanover. In December the Empire of the French, since 1804 France's new government, ceded Hanover, which it did not hold any more, to Brandenburg-Prussia, which captured it early in 1806.

On 6 August 1806 the Holy Roman Empire was dissolved, thereby abolishing the function of prince-electors electing its emperors. Thus the title of Elector of Brandenburg became meaningless for the Kingdom of Prussia. After it had turned against France, it was defeated in the Battle of Jena-Auerstedt (11 November 1806), and France recaptured Hanover.

Following the Treaty of Tilsit in 1807 the new Kingdom of Westphalia was founded, ruled by Napoléon's brother Jérôme Bonaparte, then including territories of the former Electorate of Hesse-Cassel, the ducal Brunswick-Lüneburgian principality Brunswick-Wolfenbüttel, and formerly Prussian territories. In early 1810 Hanover proper and Bremen-Verden, but not Saxe-Lauenburg, were also annexed by Westphalia. In an attempt to assert the Continental System, the French Empire annexed in late 1810 all the continental North Sea coast (as far as Denmark) and the areas along the sections of the rivers navigable for seagoing vessels, including Bremen-Verden and Saxe-Lauenburg and some adjacent territories of Hanover proper.

However, the government of George III did not recognise the French annexation, being at war continuously with France through the entire period, and Hanoverian ministers continued to operate out of London. The Privy Council of Hanover maintained its own separate diplomatic service, which maintained links with countries such as Austria and Prussia, with whom the United Kingdom itself was technically at war. The Hanoverian army was dissolved, but many of the officers and soldiers went to England, where they formed the King's German Legion. The Legion was the only German army to fight continually all through the Napoleonic wars against the French.

French control lasted until October 1813, when the territory was overrun by Russian troops, and the Battle of the Nations at Leipzig later the same month spelled the definitive end to the Napoleonic client state of Westphalia, as well as the entire Confederation of the Rhine, after which the rule of the House of Hanover was restored. The former electorate became the Kingdom of Hanover, confirmed at the Congress of Vienna in 1814.

Electors of Lithuania
The Electorate was legally indivisible: it could add to its territory, but not alienate territory or be split up among several heirs – as used to be the rule before, having led at times to a multitude of Brunswick-Lüneburgian principalities. Its succession was to follow male primogeniture. Since this was against the Salic law, then valid for the ducal family, the change needed imperial confirmation, which Emperor Leopold I granted in 1692.

In 1692, at its upgrading to the rank of electorate, its territory comprised the Brunswick-Lüneburgian principalities of Calenberg and Grubenhagen, which the line of the former had already inherited in 1665. But before the confirmation of the electorate by the Imperial Diet in 1708 the Calenberg line further inherited the principality of Celle in 1705. Further included were the earlier acquired counties of Diepholz and Hoya.

Although the Holy Roman Empire was dissolved in 1806, George III's government did not consider the dissolution to be final, and he continued to be styled "Duke of Brunswick-Luneburg, Arch-treasurer and Prince-Elector of the Holy Roman Empire" until 1814.