Louis Philippe I in the context of "Maria Amalia of the Two Sicilies"

The Capetian dynasty (/kəˈpiːʃən/ kə-PEE-shən; French: Capétiens/ka.pe.sjɛ̃/), also known as the House of France (French: La Maison de France), is a dynasty of Frankish origin, and a branch of the Robertians agnatically, and the Carolingians through female lines. It is among the largest and oldest royal houses in Europe and the world, and consists of Hugh Capet, the founder of the dynasty, and his male-line descendants, who ruled in France without interruption from 987 to 1792, and again from 1814 to 1848. The senior line from the House of Capet ruled in France from the election of Hugh Capet in 987 until the death of Charles IV in 1328. That line was succeeded by cadet branches, first the House of Valois, and succeeding them the House of Bourbon, which ruled until the French Revolution abolished the monarchy in 1792 and tried and executed King Louis XVI in 1793. The Bourbons were restored in 1814 in the aftermath of Napoleon's defeat, but had to vacate the throne again in 1830 in favor of the last Capetian monarch of France, Louis Philippe I, who belonged to the House of Orléans, a cadet branch of the Bourbons. Cadet branches of the Capetian House of Bourbon are still reigning over Spain and Luxembourg.

The dynasty had a crucial role in the formation of the French state. From a power base initially confined to their own demesne, the Île-de-France, the Capetian kings slowly but steadily increased their power and influence until it grew to cover the entirety of their realm. For a detailed narration on the growth of French royal power, see Crown lands of France. Members of the dynasty were traditionally Catholic, and the early Capetians had an alliance with the Church. The French were also the most active participants in the Crusades, culminating in a series of five Crusader kings – Louis VII, Philip Augustus, Louis VIII, Louis IX, and Philip III. The Capetian alliance with the papacy suffered a severe blow after the disaster of the Aragonese Crusade. Philip III's son and successor, Philip IV, arrested Pope Boniface VIII and brought the papacy under French control. The later Valois, starting with Francis I, ignored religious differences and allied with the Ottoman sultan to counter the growing power of the Holy Roman Empire. Henry IV was a Protestant at the time of his accession, but realized the necessity of conversion after four years of religious warfare.

Henri-Benjamin Constant de Rebecque (25 October 1767 – 8 December 1830), or simply Benjamin Constant, was a Swiss and French political thinker, activist and writer on political theory and religion.

A committed republican from 1795, Constant backed the coup d'état of 18 Fructidor (4 September 1797) and the following one on 18 Brumaire (9 November 1799). He became the leader of the Liberal opposition in 1800, during the Consulate. Having upset Napoleon and left France to go to Switzerland then to the Kingdom of Saxony, Constant nonetheless sided with him during the Hundred Days, drafting the Charter of 1815, and became politically active again during the Bourbon Restoration. He was elected to the Chamber of Deputies in 1818 and remained in office until his death in 1830. As the head of the Liberal opposition, known as Indépendants, Constant was one of the most notable orators of the Chamber as a proponent of the parliamentary system. During the July Revolution, he was a supporter of Louis Philippe I ascending the throne.

The July Monarchy (French: Monarchie de Juillet), officially the Kingdom of France (French: Royaume de France), was a liberal constitutional monarchy in France under Louis Philippe I, starting on 9 August 1830, with the revolutionary victory in the July Revolution of 1830, and ending on 24 February 1848, with the Revolution of 1848. It marks the end of the Bourbon Restoration (1814–1830). It began with the overthrow of the conservative government of Charles X, the last king of the main line House of Bourbon.

Louis Philippe I, a member of the more liberal Orléans branch of the House of Bourbon, proclaimed himself as Roi des Français ("King of the French") rather than "King of France", emphasizing the popular origins of his reign. The king promised to follow the juste milieu, or the middle-of-the-road, avoiding the extremes of both the conservative supporters of Charles X and radicals on the left.

The French Revolution of 1848 (French: Révolution française de 1848), also known as the February Revolution (Révolution de février), was a period of civil unrest in France, in February 1848, that led to the collapse of the July Monarchy and the foundation of the French Second Republic. It sparked the wave of revolutions of 1848.

The revolution took place in Paris, and was preceded by the French government's crackdown on the campagne des banquets. Starting on 22 February as a large-scale protest against the government of François Guizot, it later developed into a violent uprising against the monarchy. After intense urban fighting, large crowds managed to take control of the capital, leading to the abdication of King Louis Philippe I on 24 February and the subsequent proclamation of the Second Republic.

The July Revolution (French: Révolution de Juillet), also known as the French Revolution of 1830, Second French Revolution, or les Trois Glorieuses ("the Three Glorious [Days]"), was a second French Revolution after the first of 1789–99. It led to the overthrow of King Charles X, the French Bourbon monarch, and the ascent of his cousin Louis Philippe, Duke of Orléans.

The 1830 Revolution marked a shift from that point on as the constitutional monarchy was restored with the July Monarchy; the transition of power from the House of Bourbon to its cadet branch, the House of Orléans; and the replacement of the principle of hereditary right by that of popular sovereignty. Supporters of the Bourbons would be called Legitimists, and supporters of Louis Philippe were known as Orléanists. In addition, there continued to be Bonapartists supporting the return of Napoleon's heirs. After 18 precarious years on the throne, Louis-Philippe was overthrown in the French Revolution of 1848.

Louise of Orléans (Louise-Marie Thérèse Charlotte Isabelle; 3 April 1812 – 11 October 1850) was the first Queen of the Belgians as the second wife of King Leopold I from their marriage on 9 August 1832 until her death in 1850. She was the second child and eldest daughter of the French king Louis Philippe I and his wife, Maria Amalia of the Two Sicilies. Louise rarely participated in public representation, but acted as the political adviser of her spouse. Her large correspondence is a valuable historical source of the period and has been published.

The Legitimists (French: Légitimistes) are royalists who adhere to the rights of dynastic succession to the French crown of the descendants of the eldest branch of the Bourbon dynasty, which was overthrown in the 1830 July Revolution. They reject the claim of the July Monarchy of 1830–1848 which placed Louis Philippe, Duke of Orléans, head of the Orléans cadet branch of the Bourbon dynasty, on the throne until he too was dethroned and driven with his family into exile.

Following the movement of Ultra-royalists during the Bourbon Restoration of 1814, Legitimists came to form one of France's three main right-wing factions, which were principally characterized by their counter-revolutionary views. According to historian René Rémond, the other two right-wing factions were the Orléanists and the Bonapartists.

Orléanist (French: Orléaniste) was a 19th-century French political label originally used by those who supported a constitutional monarchy expressed by the House of Orléans. Due to the radical political changes that occurred during that century in France, four different phases of Orléanism can be identified:

• The "pure" Orléanism: constituted by those who supported the constitutional reign of Louis Philippe I (1830–1848) after the 1830 July Revolution, and who showed liberal and moderate ideas.
• The "fusionist" (or "unionist") Orléanism: the movement formed by pure Orléanists and by those Legitimists who after the childless death of Henri, Count of Chambord in 1883 endorsed Philippe, Count of Paris, grandson of Louis Philippe, as his successor. The fusion drove the Orleanist movement to more conservative stances, emphasising French nationality (rejecting claims to France of the Spanish Bourbons on account of their "foreignness") and Catholicism.
• The "progressive" Orléanism: the majority of "fusionists" who, after the decline of monarchist sentiment in the 1890s, joined into moderate republicans, who showed progressive and secular-minded goals, or into Catholic rally, like the Liberal Action.
• Contemporary Orléanism. The party Action Française embraced and still does advocate for its own variant of Orléanism which rejects the economic liberal policies of "pure" Orléanism and supports Integralism.

Orleanism was opposed by the two other monarchist trends: the more conservative Legitimism that was loyal to the eldest branch of the House of Bourbon after 1830, and the Bonapartism that supported Napoleon's legacy and heirs.