Leopold I (; 16 December 1790 – 10 December 1865) was the first king of the Belgians, reigning from 21 July 1831 until his death in 1865.
The youngest son of Francis, Duke of Saxe-Coburg-Saalfeld, Leopold took a commission in the Imperial Russian Army and fought against Napoleon after French troops overran Saxe-Coburg during the Napoleonic Wars. After Napoleon's defeat, Leopold moved to the United Kingdom, where in 1816 he married Princess Charlotte of Wales, the only child of the Prince Regent (the future King George IV). Leopold and Charlotte's marriage was happy, but it ended after a year and a half when Charlotte died after delivering a stillborn son. Leopold continued to enjoy considerable status in Britain.
After the Greek War of Independence (1821–1830), Leopold was offered the throne of Greece under the 1830 London Protocol that created an independent Greek state, but turned it down, believing it to be too precarious. Instead, he accepted the throne of Belgium in 1831 following the country's independence in 1830. The Belgian government offered the position to Leopold because of his diplomatic connections with royal houses across Europe, and because as the British-backed candidate, he was not affiliated with other powers, such as France, which were believed to have territorial ambitions in Belgium which might threaten the European balance of power created by the 1815 Congress of Vienna.
Leopold took his oath as King of the Belgians on 21 July 1831, an event commemorated annually as Belgian National Day. The following year, he married Princess Louise of Orléans, with whom he had four children: Louis Philippe, Leopold, Philippe, and Charlotte. The King had another two sons, George and Arthur, by his mistress Arcadie Meyer. Leopold's reign was marked by attempts by the Dutch to recapture Belgium and, later, by internal political division between liberals and Catholics. As a Protestant, Leopold was considered liberal and encouraged economic modernisation, playing an important role in encouraging the creation of Belgium's first railway in 1835 and subsequent industrialisation. As a result of the ambiguities in the Belgian Constitution, Leopold was able to slightly expand the monarch's powers during his reign. He also played an important role in stopping the spread of the Revolutions of 1848 into Belgium. He died in 1865 and was succeeded by his son Leopold II.
Early life
Leopold was born in Coburg in the tiny German duchy of Saxe-Coburg-Saalfeld in modern-day Bavaria on 16 December 1790. He was the youngest son of Francis, Duke of Saxe-Coburg-Saalfeld, and Countess Augusta Reuss of Ebersdorf. In 1826, Saxe-Coburg acquired the city of Gotha from the neighboring Duchy of Saxe-Gotha-Altenburg and gave up Saalfeld to Saxe-Meiningen, becoming Saxe-Coburg and Gotha.
Military career
In 1797, at just six years old, Leopold was given an honorary commission of the rank of colonel in the Izmaylovsky Regiment, part of the Imperial Guard, in the Imperial Russian Army. Six years later, he received a promotion to the rank of Major General.
When French troops occupied the Duchy of Saxe-Coburg in 1806 during the Napoleonic Wars, Leopold went to Paris where he became part of the Imperial Court of Napoleon. Napoleon offered him the position of adjutant, but Leopold refused. Instead, he went to Russia to take up a military career in the Imperial Russian cavalry, which was at war with France at the time. He campaigned against Napoleon and distinguished himself at the Battle of Kulm at the head of his cuirassier division. By 1815, the time of the final defeat of Napoleon, he had reached the rank of lieutenant general at only 25 years of age.
Marriage to Charlotte
Leopold received British citizenship in March 1816. On 2 May 1816, Leopold married Princess Charlotte of Wales at Carlton House, London. Charlotte was the only legitimate child of Prince George, Prince Regent (later George IV), and therefore second in line to the British throne. The Prince Regent had hoped Charlotte would marry William, Prince of Orange, but she favoured Leopold. Although the Regent was displeased, he found Leopold to be charming and possessing every quality to make his daughter happy, and so approved their marriage. The same year Leopold received an honorary commission to the rank of Field Marshal and Knight of the Order of the Garter. The Regent also considered making Leopold a royal duke, the Duke of Kendal, though the plan was abandoned due to government fears that it would draw Leopold into party politics and would be viewed as a demotion for Charlotte. The couple lived initially at Camelford House on Park Lane, and then at Marlborough House on Pall Mall.