An oil on canvas portrait of George IV of the United Kingdom as the Prince Regent, by Sir Thomas Lawrence. In 1814, Lord Stewart, who had been appointed ambassador in Vienna and was a previous client of Thomas Lawrence, wanted to commission a portrait by him of the Prince Regent. He arranged that Lawrence should be presented to the Prince Regent at a levée. Soon after, the Prince visited Lawrence at his studio in Russell Square. Lawrence wrote to his brother that: To crown this honour, [he] engag'd to sit to me at one today and after a successful sitting of two hours, has just left me and comes again tomorrow and the next day.

Jigme Khesar Namgyel Wangchuck is the fifth and current Bhutan Dragon King and head of the Wangchuck dynasty. He became king on 14 December 2006, and was officially crowned on 6 November 2008. The young king began his unusual reign overseeing the democratization of Bhutan, stating that the responsibility for this generation of Bhutanese was to ensure the success of democracy.

Sālote Tupou III was the first Queen regnant and third Monarch of the Kingdom of Tonga from 1918 to her death in 1965. She reigned for nearly 48 years, longer than any other Tongan Monarch.

Portrait of Eleanor of Toledo is a painting by Bronzino of Eleanor of Toledo, a Spanish noblewoman who was the duchess consort of Cosimo I de' Medici, Grand Duke of Tuscany, and her son Giovanni. The painting is one of the artist's most famous works and is in the Uffizi Gallery in Florence, Italy. It is the first known state-commissioned portrait to include the ruler's heir, which was done in part because Cosimo's predecessor Alessandro died without any legitimate male heirs. The boy's inclusion implies that Cosimo's rule would bring stability to the duchy.

Pedro II was the second and last ruler of the Empire of Brazil, reigning for over 58 years. Born in Rio de Janeiro, his father Pedro I's abrupt abdication and flight to Europe in 1831 left him as Emperor at the age of five. Inheriting an Empire on the verge of disintegration, Pedro II turned Brazil into an emerging power in the international arena. On November 15, 1889, he was overthrown in a coup d'état by a clique of military leaders who declared Brazil a republic. However, he had become weary of emperorship and despaired over the monarchy's future prospects, despite its overwhelming popular support, and did not support any attempt to restore the monarchy.

A full-length portrait of then-French Marshal Jean Baptiste Bernadotte (1763–1844), who later became King Charles XIV John of Sweden and Norway. Bernadotte had a long and decorated career in the French Army, when he was unexpectedly elected the heir to the childless King Charles XIII. His election was due to two main factors: the Swedish Army were in favour of electing a soldier in view of future complications with Russia, and he had shown kindness to Swedish prisoners during the recent war with Denmark, part of the Napoleonic Wars. Although he never learned to speak Swedish, during his reign, Sweden and Norway became united, and both experienced great material development.

Kalākaua was the last reigning king of the Kingdom of Hawaii. He was elected king after Kamehameha V died without leaving an heir, and began his reign on February 12, 1874. During his nearly 17-year rule, Kalākaua believed in the hereditary right of the aliʻi to rule, putting him in contention with the Hawaiian League, composed mostly of Americans who favored annexation of the Hawaiian islands by the United States. In 1887, he was forced to sign the Bayonet Constitution, which stripped the monarchy of much of its power. He died in 1891, and the throne passed to his sister, Liliuokalani.

A portrait of Edward VI of England, when he was Prince of Wales. He is shown wearing a badge with the Prince of Wales's feathers. It was most likely painted in 1546 when he was eight years old, during the time when he was resident at Hunsdon House. Edward became King of England, King of France and Edward I of Ireland the following year. He was the third monarch of the Tudor dynasty and England's first ruler who was Protestant at the time of his ascension to the throne. Edward's entire rule was mediated through a council of regency. He died at the age of 15 in 1553.

Mary of Teck was the queen consort of King George V as well as the Empress of India. Before her accession, she was successively Duchess of York, Duchess of Cornwall and Princess of Wales. By birth, she was a princess of Teck, in the Kingdom of Württemberg, with the style Her Serene Highness. To her family, she was informally known as May, after her birth month. Queen Mary was known for setting the tone of the British Royal Family, as a model of regal formality and propriety, especially during state occasions. She was the first Queen Consort to attend the coronation of her successors. Noted for superbly bejewelling herself for formal events, Queen Mary left a collection of jewels now considered priceless.

Charles III (1716–1788) was king of Spain from 1759 to 1788. As king, he implemented far-reaching reforms, such as weakening the Catholic Church and its monasteries, promoting science and university research, facilitating trade and commerce, modernizing agriculture and avoiding wars. However, he never achieved satisfactory control over finances, and his reforms proved short-lived.

Grand Duchess Anastasia Nikolaevna of Russia was the youngest daughter of Tsar Nicholas II, the last sovereign of Imperial Russia, and his wife, Tsarina Alexandra Fyodorovna. At age 17, she was executed with her family in an extrajudicial killing by members of the Cheka – the Bolshevik secret police – on July 17, 1918. Rumors have abounded that she survived, and multiple women have claimed to be her. However, this possibility has been conclusively disproven.

Louis XVI of France (1754–1793) was King of France (later King of the French) from 1774 until his deposition in 1792. His early reign was marked by attempts to reform France in accordance with Enlightenment ideals, including ultimately quashed efforts to abolish serfdom, remove the taille, and increase tolerance toward non-Catholics. However, after several years of national debt and financial and food crises, Louis was arrested during the insurrection of 10 August 1792, found guilty of high treason, and executed by guillotine on 21 January 1793.

Mehmed VI (1861–1926) was the 36th and last Sultan of the Ottoman Empire. He was girded with the Sword of Osman in June 1918, with his reign beginning the following month after his brother's death. Following the Ottoman defeat in World War I, Mehmed VI was tasked with reconciliation with the Allies. However, his settlements were denounced by Turkish nationalists, and in 1922 the Grand National Assembly of Turkey abolished the sultanate. Mehmed VI spent the rest of his life in exile.

Maria Amalia of Saxony (1724–60) was a German princess who married the future Charles III of Spain in 1738, the year of this painting. She was Queen of Naples and Sicily from 1738 until 1759, then Queen of Spain from 1759 until her death.

William I (1772–1843) was a Prince of Orange and the first King of the Netherlands and Grand Duke of Luxembourg. William implemented controversial language policies, founded many trade institutions and universities, and adopted a new constitution. However, the southern Netherlands became increasingly marginalized, and in 1830 the Belgian Revolution broke out. The war against the newly-declared Belgium caused considerable economic distress for the Netherlands, and in 1839 William signed the Treaty of London, which recognized Belgium. William abdicated the following year.

The Emperor Napoleon in His Study at the Tuileries is an oil painting on canvas completed by Jacques-Louis David in 1812. It depicts French Emperor Napoleon, wearing the uniform of a colonel of the Imperial Guard Foot Grenadiers, standing in his study at the Tuileries Palace. Unlike David's earlier painting Napoleon Crossing the Alps, here the emperor is depicted as a civil hero rather than a military one, though his martial prowess is alluded to through the sword on his chair. The painting has been in the collection of the National Gallery of Art in Washington, D.C., since 1954.

Mehmed IV (1642–1693) was the Sultan of the Ottoman Empire from 1648 to 1687. He came to the throne at the age of six, and went on to become the second longest reigning sultan in Ottoman history. During his middle years, he oversaw the revival of the empire's fortunes associated with the Köprülü era. Mehmed was known by contemporaries as a particularly pious ruler, and was referred to as gazi, or "holy warrior" for his role in the empire's many conquests. In 1687, after being overthrown, Mehmed retired to Edirne, where he resided until his death.

Dona Maria I was Queen of Portugal, Brazil and the Algarves. Known as Maria the Pious (in Portugal), or Maria the Mad (in Brazil), she was the first undisputed Queen regnant of Portugal and the first monarch of Brazil. With Napoleon's European conquests, her court, then under the direction of Prince Dom João, the Prince Regent, moved to Brazil, then a Portuguese colony. Later on, Brazil would be elevated from the rank of a colony to that of a kingdom, with the consequential formation of the United Kingdom of Portugal, Brazil and the Algarves.

Queen Wilhelmina of the Netherlands with her daughter and successor Princess Juliana, circa 1914. Wilhelmina was queen regnant from 1890 to 1948, longer than any other Dutch monarch. Outside the Netherlands she is primarily remembered for her role in the Second World War, in which she proved to be a great inspiration to the Dutch resistance, as well as a prominent leader of the Dutch government in exile. Juliana became queen regnant in 1948 after her mother's abdication and ruled until her own abdication in 1980, succeeded by her daughter, Beatrix.

Maria Karolina Zofia Felicja Leszczyńska was a Polish noblewoman and French Queen consort. The daughter of King Stanisław Leszczyński—Stanislaw I of Poland (later Duke of Lorraine)–and Catherine Opalińska, she married King Louis XV of France and became queen consort of France. She served in that role for 42 years from 1725 until her death in 1768, the longest service of any queen of France, and was popular due to her generosity and piety. She was the grandmother of Louis XVI, Louis XVIII and Charles X of France.