Landgraviate of Hesse-Kassel in the context of "Brothers Grimm"

The Rothschild family is a wealthy Ashkenazi Jewish noble banking family originally from Frankfurt. The family's documented history starts in 16th-century Frankfurt; its name is derived from the family house, Rothschild, built by Isaak Elchanan Bacharach in Frankfurt in 1567. The family rose to prominence with Mayer Amschel Rothschild (1744–1812), a court factor to the German Landgraves of Hesse-Kassel in the Free City of Frankfurt, Holy Roman Empire, who established his banking business in the 1760s. Unlike most previous court factors, Rothschild managed to bequeath his wealth and established an international banking family through his five sons, who established businesses in Paris, Frankfurt, London, Vienna, and Naples. The family was elevated to noble rank in the Holy Roman Empire and the United Kingdom. The only subsisting branches of the family are the French and British ones.

During the 19th century, the Rothschild family possessed the largest private fortune in the world, as well as in modern world history. The Rothschild family dominated international finance in Europe between the 1820s and the 1870s, when their hegemony over European finance was broken by joint stock banks. The family's wealth declined over the 20th century and was divided among many descendants. Today, their assets cover a diverse range of sectors, including financial services, real estate, mining, energy, agriculture, and winemaking. The family additionally has philanthropic endeavours and nonprofits. Many examples of the family's rural architecture exist across northwestern Europe. The Rothschild family has frequently been the subject of antisemitic conspiracy theories.

The Grand Duchy of Hesse and by Rhine (German: Großherzogtum Hessen und bei Rhein) was a grand duchy in western Germany that existed from 1806 to 1918. The grand duchy originally formed from the Landgraviate of Hesse-Darmstadt in 1806 as the Grand Duchy of Hesse (German: Großherzogtum Hessen). It assumed the name Hesse and by Rhine in 1816 to distinguish itself from the Electorate of Hesse, which had formed from the neighbouring Landgraviate of Hesse-Kassel. Colloquially, the grand duchy continued to be known by its former name of Hesse-Darmstadt.

In 1806, the Landgraviate of Hesse-Darmstadt seceded from the Holy Roman Empire and joined Napoleon's new Confederation of the Rhine. The country was promoted to the status of grand duchy and received considerable new territories, principally the Duchy of Westphalia. After the French defeat in 1815, the grand duchy joined the new German Confederation. Westphalia was taken by Prussia, but Hesse received Rhenish Hesse in return. A constitution was proclaimed in 1820 and a long process of legal reforms was begun, with the aim of unifying the disparate territories under the grand duke's control. The political history of the grand duchy during this period was characterised by conflict between the conservative mediatised houses (Standesherren) and forces supporting political and social liberalisation. During the 1848 revolutions, the government was forced to grant wide-ranging reforms, including the full abolition of serfdom and universal manhood suffrage, but the reactionary government of Reinhard von Dalwigick rolled most of these back over the following decade. In 1866, Hesse entered the Austro-Prussian War on the Austrian side, but received a relatively mild settlement from the Prussian victors. The grand duchy joined the German Empire in 1871. As a small state within the empire, the grand duchy had limits placed on its autonomy, but significant religious, social, and cultural reforms were carried out. During the November Revolution after World War I in 1918, the grand duchy was overthrown and replaced by the People's State of Hesse.

The Low Countries theatre of the War of the First Coalition, also known as the Flanders campaign, was a series of campaigns in the Low Countries conducted from 20 April 1792 to 7 June 1795 during the first years of the War of the First Coalition. As the French Revolution radicalised, the revolutionary National Convention and its predecessors broke the Catholic Church's power (1790), abolished the monarchy (1792) and even executed the deposed king Louis XVI (1793), vying to spread the Revolution beyond the new French Republic's borders, by violent means if necessary. The First Coalition, an alliance of reactionary states representing the Ancien Régime in Central and Western Europe – Habsburg Austria (including the Southern Netherlands), Prussia, Great Britain, the Dutch Republic (the Northern Netherlands), Hanover and Hesse-Kassel – mobilised military forces along all the French frontiers, threatening to invade Revolutionary France and violently restore the monarchy. The subsequent combat operations along the French borders with the Low Countries and Germany became the primary theatre of the War of the First Coalition until March 1796, when Napoleon took over French command on the Italian front.

The April–June 1792 French incursions into the Austrian Netherlands were a disaster, eventually leading frustrated radical revolutionaries to depose the king in August. An unexpected French success in the Battle of Jemappes in November 1792 was followed by a major Coalition victory at Neerwinden in March 1793. After this initial stage, the largest of these forces assembled on the Franco-Flemish border. In this theatre a combined army of Anglo-Hanoverian, Dutch, Hessian, Imperial Austrian and (south of the river Sambre) Prussian troops faced the republican Armée du Nord, and (further to the south) two smaller forces, the Armée des Ardennes and the Armée de la Moselle. The Allies enjoyed several early victories, but were unable to advance beyond the French border fortresses. Coalition forces were eventually forced to withdraw by a series of French counter-offensives, and the May 1794 Austrian decision to redeploy any troops in Poland.

Bergpark Wilhelmshöhe is a landscape park in Kassel, Germany. The area of the park is 2.4 square kilometres (590 acres), making it the largest European hillside park, and second largest park on a hill slope in the world. Construction of the Bergpark, or "mountain park", began in 1689 at the behest of the Landgraves of Hesse-Kassel and took about 150 years. The park is open to the public today. Since 2013, it has been a UNESCO World Heritage Site because of its monumental Baroque architecture and its unique fountains and water features.

William IV of Hesse-Kassel (24 June 1532 – 25 August 1592), also called William the Wise, was the first Landgrave of the Landgraviate of Hesse-Kassel (or Hesse-Cassel). He was the founder of the oldest line, which survives to this day.

Hesse-Rheinfels was created as a cadet line of Hesse for Philip II, Landgrave of Hesse-Rheinfels (1541–1583), landgrave from 1567 until 1583, and as a cadet line of Hesse-Kassel for Ernest, Landgrave of Hesse-Rheinfels (1623–1693), landgrave from 1627 until 1658.

Hessians (US: /ˈhɛʃənz/ or UK: /ˈhɛsiənz/) were German soldiers who served as auxiliaries to the British Army in several major wars in the 18th century, most notably in the American Revolutionary War. The term is a synecdoche for all Germans who fought on the British side, since 65% came from the German states of Hesse-Kassel and Hesse-Hanau. Known for their discipline and martial prowess, around 30,000 to 37,000 Hessians fought in the war, comprising approximately 25% of British land forces.

While regarded both contemporaneously and historiographically as mercenaries, Hessians were legally distinguished as auxiliaries: whereas mercenaries served a foreign government on their own accord, auxiliaries were soldiers hired out to a foreign party by their own government, to which they remained in service. Auxiliaries were a major source of income for many small and relatively poor German states, typically serving in wars in which their governments were otherwise neutral. Like most auxiliaries of this period, Hessians were attached to foreign armies as entire units, fighting under their own flags, commanded by their usual officers, and wearing their existing uniforms.