Leopold II (9 April 1835 – 17 December 1909) was the second king of the Belgians from 1865 to 1909, and the founder and sole owner of the Congo Free State from 1885 to 1908.

Born in Brussels as the second but eldest-surviving son of King Leopold I and Queen Louise, Leopold succeeded his father to the Belgian throne in 1865 and reigned for 44 years until his death, the longest reign of a Belgian monarch to date. He died without surviving legitimate sons; the current king of the Belgians, Philippe, descends from his nephew and successor, Albert I. He is popularly referred to as the Builder King in Belgium in reference to the great number of buildings, urban projects and public works he commissioned.

Leopold was the founder and sole owner of the Congo Free State, a private colonial project undertaken on his own behalf as a personal union with Belgium. He used Henry Morton Stanley to help him lay claim to the Congo, the present-day Democratic Republic of the Congo. At the Berlin Conference of 1884–1885, the colonial nations of Europe authorised his claim and committed the Congo Free State to him. Leopold ran the Congo, which he never personally visited, by using the mercenary Force Publique for his personal gain. He extracted a fortune from the territory, initially by the collection of ivory and, after a rise in the price of rubber in the 1890s, by forced labour from the Indigenous population to harvest and process rubber.

Leopold's administration was characterised by systematic brutality and atrocities in the Congo Free State, including forced labour, torture, murder, kidnapping, along with the amputation of the hands and sometimes feet of men, women, and children when the quota of rubber was not met. In one of the first uses of the term, George Washington Williams described the practices of Leopold's administration of the Congo Free State as "crimes against humanity" in 1890.Hochschild, A. King Leopold's Ghost: A Story of Greed, Terror and Heroism in Colonial Africa. Houghton Mifflin, 1999. pp. 111–112.

While it has proven difficult to accurately estimate the pre-colonial population and the extent to which it changed under the Congo Free State, estimates for the Congolese population decline during Leopold's rule range from 1 million to 15 million. The causes of the decline included epidemic disease, a reduced birth rate, and violence and famine caused by the regime. He was widely condemned because of his brutal and oppressive regime in the Congo that resulted in widespread suffering and loss of life including exploitation, violence, and immense human rights abuses, particularly involving the rubber trade.

Early life

Leopold was born in Brussels on 9 April 1835, the second child of the reigning Belgian monarch, Leopold I, and of his second wife, Louise, the daughter of King Louis Philippe of France.Emerson, pp. 4–6. His eldest brother, Louis Philippe, Crown Prince of Belgium, died in infancy in 1834. As heir apparent, Leopold was granted the title of Duke of Brabant in 1840. The French Revolution of 1848 forced his maternal grandfather, Louis Philippe, to flee to the United Kingdom.Emerson, p. 9. Louis Philippe died two years later, in 1850. Leopold's fragile mother was deeply affected by the death of her father and her health deteriorated. She died of tuberculosis the same year, when Leopold was 15 years old.Emerson, pp. 9–10.

Leopold's sister Charlotte became Empress Carlota of Mexico in 1864. The British monarch at the time, Queen Victoria, was Leopold II's first cousin, as was Victoria's husband, Prince Albert, since Leopold's father, Albert's father, Duke Ernest I of Saxe-Coburg-Gotha, and Victoria's mother, the then Duchess of Kent, were all siblings.Aronson, p. 13. As a young man, Leopold II served in the Belgian military and achieved the rank of lieutenant-general. He also served in the Belgian Senate at the time.

Marriage and family

At the age of 18, Leopold married Marie Henriette of Austria, a cousin of Emperor Franz Joseph I of Austria and granddaughter of the late Holy Roman Emperor Leopold II, on 22 August 1853 in Brussels. Lively and energetic, Marie Henriette endeared herself to the people by her character and benevolence. Her beauty earned her the sobriquet "The Rose of Brabant". She was also an accomplished artist and musician. She was passionate about horse riding, to the point that she would care for her horses personally. Some joked about this "marriage of a stableman and a nun", the latter referring to the shy and withdrawn Leopold. The marriage produced four children: three daughters and one son, Prince Leopold, Duke of Brabant. The younger Leopold died in 1869 at the age of nine from pneumonia after falling into a pond. His death was a source of great sorrow for King Leopold. The marriage became unhappy, and the couple separated after a last attempt to have another son, a union that resulted in the birth of their last daughter, Clementine. Marie Henriette retreated to Spa in 1895, and died there in 1902.

Leopold had many mistresses. In 1899, in his 65th year, Leopold took as a mistress Caroline Lacroix, a 16-year-old French prostitute, and they remained together until his death ten years later. Leopold lavished upon her large sums of money, estates, gifts, and a noble title, Baroness de Vaughan. Owing to these gifts and the unofficial nature of their relationship, their affair ironically lost Leopold more popularity in Belgium than any of his crimes in the Congo.Hochschild, p. 222. Caroline bore two sons, Lucien Philippe Marie Antoine, Duke of Tervuren, and Philippe Henri Marie François, Count of Ravenstein. Their second son was born with a deformed hand, leading a cartoon to depict Leopold holding the child surrounded by Congolese corpses with their hands sliced off: the caption said "Vengeance from on high".Hochschild, p. 224.Rappoport, p. 268. They married secretly in a religious ceremony five days before his death. Their failure to perform a civil ceremony rendered the marriage invalid under Belgian law. After the king's death, it soon emerged that he had left his widow a large fortune in Congo securities, only some of which the Belgian government and Leopold's three estranged daughters were able to win back.

Early political career As Leopold's older brother, the earlier crown prince Louis Philippe, had died the year before Leopold's birth, Leopold was heir to the throne from his birth. When he was 5 years old, Leopold received the title of Duke of Brabant, and was appointed a sub-lieutenant in the army. He served in the army until his accession in 1865, by which time he had reached the rank of lieutenant-general.

Leopold's public career began on his attaining the age of majority in 1855, when he became a member of the Belgian Senate. He took an active interest in the senate, especially in matters concerning the development of Belgium and its trade, and began to urge Belgium's acquisition of colonies. Leopold travelled abroad extensively from 1854 to 1865, visiting India, China, Egypt, and the countries on the Mediterranean coast of Africa. His father died on 10 December 1865, and Leopold took the oath of office on 17 December, at the age of 30. He also served in the Belgian Senate during this time.

Domestic reign

Leopold became king in 1865. He explained his goal for his reign in an 1888 letter addressed to his brother, Prince Philippe, Count of Flanders: "the country must be strong, prosperous, therefore have colonies of her own, beautiful and calm."

Leopold's reign was marked by a number of major political developments. The Liberals governed Belgium from 1857 to 1880, and during its final year in power legislated the Frère-Orban Law of 1879. This law created free, secular, compulsory primary schools supported by the state and withdrew all state support from Roman Catholic primary schools. The Catholic Party obtained a parliamentary majority in 1880, and four years later restored state support to Catholic schools. In 1885, various socialist and social democratic groups drew together and formed the Labour Party. Increasing social unrest and the rise of the Labour Party forced the adoption of universal male suffrage in 1893.

During Leopold's reign other social changes were enacted into law. Among these were the right of workers to form labour unions and the abolition of the livret d'ouvrier, an employment record book. Laws against child labour were passed. Children younger than 12 were not allowed to work in factories, children younger than 16 were not allowed to work at night, and women younger than 21 years old were not allowed to work underground. Workers gained the right to be compensated for workplace accidents and were given Sundays off.

Leopold's reluctance to use the Dutch language in public did little to solve the linguistic conflict in Belgium and made him more unpopular than his father with the Flemish Movement. However, his nephew and heir, Prince Baudouin, became something of a hero to the Flemings, and Leopold did make some speeches in Dutch shortly before and after Baudouin's premature death in 1891.

The first revision of the Belgian Constitution came in 1893. Universal male suffrage was introduced, though the effect of this was tempered by plural voting. The eligibility requirements for the Senate were reduced, and elections would be based on a system of proportional representation, which continues to this day. Leopold pushed strongly to enable a royal referendum, whereby the king would have the power to consult the electorate directly on an issue, and use his veto according to the results of the referendum. The proposal was rejected, as it would have given the king the power to override the elected government. Leopold was so disappointed that he considered abdication.

Leopold emphasised military defence as the basis of neutrality, and strove to make Belgium less vulnerable militarily. He achieved the construction of defensive fortresses at Liège, at Namur and at Antwerp. During the Franco-Prussian War, he managed to preserve Belgium's neutrality in a period of unusual difficulty and danger. Leopold pushed for a reform in military service, but he was unable to obtain one until he was on his deathbed. The Belgian army was a combination of volunteers and a lottery, and it was possible for men to pay for substitutes for service. This was replaced by a system in which one son in every family would have to serve in the military. According to historian Jean Stengers, Leopold II's imperialism was driven by economic advantage rather than political grandeur. Leopold sought to maximise profit through efficient exploitation, including forced labour and direct revenue. However, Stengers emphasises that Leopold's voracity was not solely for personal enrichment; it was also rooted in patriotism—a desire to ensure Belgium's prosperity and embellishment.

Builder King

Leopold commissioned a great number of buildings, urban projects and public works. According to the historians Wm. Roger Louis and Adam Hochschild, this was largely possible thanks to the profits generated from the Congo Free State, though this is disputed.Matthew G. Stanard, "King Leopold's Bust. A Story of Monuments, Culture, and Memory in Colonial Europe", in: Journal of Colonialism and Colonial History, 2011, no. 2, These projects earned him the epithet of "Builder King" (, ). The public buildings were mainly in Brussels, Ostend, Tervuren and Antwerp, and include the Parc du Cinquantenaire/Jubelpark (1852–1880), memorial arcade and complex, the Basilica of the Sacred Heart (1905–1969)Vandenbreeden. p. 13 and Duden Park in Brussels (1881); the Hippodrome Wellington racetrack (1883), the Royal Galleries and Maria Hendrikapark in Ostend (1902); the Royal Museum for Central Africa and its surrounding park in Tervuren (1898); and Antwerpen-Centraal railway station in Antwerp (1895–1905).