Identifying the last rulers of historical kingdoms and empires can be messy. Attaching names and dates to these events isn't always easy, especially as governments transition from one form to the next - often in the midst of chaos and uncertainty.
Naming the last ruler in France is full of complexities, as is getting a full understanding of what happened to the last ruler of the Aztec empire or the final monarch of Hawaii. Here are the "whos" and "whens" of some of the biggest, most powerful, and best-known kingdoms and empires in history.
Arguably, the last king of France was Louis XVI, the monarch who ruled when the French Revolution broke out during the late 18th century. After his unsuccessful attempts to flee from revolutionaries, Louis XVI (1754-1792) was put on trial for treason in 1792. The monarchy was abolished and, the following year, both the king and his wife, Marie Antoinette, were executed by guillotine.
During the first stage of the French Revolution, France functioned as a constitutional monarchy, although Louis XVI was little more than a figurehead. With the dissolution of the monarchy, the country transitioned into a republic, albeit one that became increasingly radicalized until 1794. During what is known as the Reign of Terror, controlling factions in France adopted a new calendar, banned Christianity, and put thousands of suspected enemies to death. Headed by Maximilien Robespierre, the Committee of Public Safety oversaw as many as 17,000 executions - with Robespierre himself falling to the guillotine in July 1794.
From 1795 to 1799, the Directory - five individuals appointed by the French parliament - made executive decisions for France. As the country fought in numerous international conflicts, saw continued political misconduct, and suffered economic crises, the door opened for Napoleon Bonaparte to stage a coup and seize control of the government.
The prominent general took dictatorial control of France, first becoming First Consul, then Consul for Life (1802), and emperor (1804). He fought in numerous territorial conflicts, ultimately prompting an alliance of European powers to unite and unseat him. In 1814, Bonaparte was forced to abdicate and exiled to the small island of Elba in the Mediterranean.
Bonaparte managed to escape from exile and returned to Paris in 1815. For 100 days, he attempted to reassert his dominance, but failed. After his defeat at Waterloo and another exile (this time to St. Helena in the South Atlantic), the monarchy in France was reestablished, with Louis XVIII placed on the throne in July 1815.
The monarchy in France continued, plagued by continued political and economic strife. In 1852, Napoleon Bonaparte's nephew, Charles-Louis-Napoleon Bonaparte, became Emperor Napoleon III after serving as president of the Second Republic from 1848. He, too, became a dictator, and after being captured during the Franco-Prussian conflict, was deposed. France then established the Third Republic.
Last Ottoman Sultan: Mehmed VI
The Ottoman Empire was established by Osman Bey during the final years of the 13th century. With Turkish roots that trace back centuries further, Osman consolidated power throughout the eastern Mediterranean, into Europe, and across North Africa. As the sultan (a word that reflects rule in Muslim areas where religious and political sovereignty are inextricably linked), Osman set the foundation for more than 600 years of Ottoman power.
During the late Middle Ages and through the early modern period, the Ottoman Empire ebbed and flowed in its territorial expanse, with great gains made in Yemen, Cyprus, and Ukraine through the late 17th century. One of the most important successes for the Ottomans was Mehmed II's conquest of Constantinople in 1453. This ended the Byzantine Empire and gave the Ottomans control of the important strategic location, which they renamed Istanbul.
The decline of the Ottoman Empire was the result of internal instability brought on by revolutions and assassinations, foreign interference, and an inability to keep up with their rivals' technological advancements. By the early 20th century, the Ottoman Empire was considerably smaller and weaker than it had been at its apex, but its end was sealed during WWI. The Ottomans joined the side of the Central Powers, and with their defeat in 1918, saw most of their territory distributed to foreign powers.
Nominally, the Ottoman Empire continued, with Mehmed VI functioning as sultan after the demise of his brother, Mehmed V, in 1918. Mehmed VI was overthrown in 1922 when the sultanate was officially abolished. Turkey declared itself a republic under the leadership of Mustafa Kemal Ataturk.
To many scholars and observers of history, Charlemagne's crowning by Pope Leo III in 800 AD marks the establishment of the Holy Roman Empire. Others emphasize the development of the role of Holy Roman Emperor during the 10th-century reign of Otto I, or even the 13th or 16th centuries with the adoption of the title "Holy Roman Empire." Regardless of when the Holy Roman Emperor came to be, Francis II was the last in a long line of leaders - with the official end to the office in 1806.
Francis II became the Holy Roman Emperor in 1792, but was forced to abdicate after Napoleon Bonaparte wreaked havoc on Europe. Bonaparte's Confederation of the Rhine, set up in 1806, unified all German states (with the exception of Austria and Prussia), shifting Francis's place in European politics. Bonaparte gave Francis an ultimatum to dissolve the Holy Roman Empire in August 1806, which he did.
Francis didn't disappear from European events, however. His daughter, Marie-Louise, married Napoleon Bonaparte in 1810 and joined in the military action against the self-proclaimed emperor of the French in 1813. Still the ruler of Austria, he was influential in the negotiations about what to do with Bonaparte's former empire at the Congress of Vienna from 1814-1815.
When Diocletian (r. 284-305 AD) took control of the Roman Empire, he split it into two parts. With the establishment of the tetrarchy, four officials ruled the empire, two in the West and two in the East. In each area, there was an Augustus (senior emperor) and a Caesar (junior emperor). Diocletian was the first Augustus in the East, while Maximian held the title in the West.
As the struggle for power over the Roman Empire continued, the East increasingly became the political, cultural, and economic powerhouse. Constantine (r. 306-337 AD) declared Byzantium the capital of the Roman Empire, while Rome was plagued by strikes from so-called barbarian tribes. Internal conflict and external pressure perpetuated a lack of stability, with the tetrarchy going in and out of use through the fourth century. By the start of the fifth century, Rome was essentially a symbolic capital, with the Western Roman emperors situated in Milan before shifting to Ravenna in 402 AD.
When Romulus Augustulus took control of the Western Roman Empire in 475 AD, he was just 15 years old. His father, Orestes, was more likely the individual in charge, but neither was able to resist the incursion of Flavius Odoacer into Italy. Odoacer, a former Roman mercenary, seized Ravenna in 476 AD, sealing the fate of the Western Roman Empire. Odoacer became king of Rome, with the emperor in the East, Zeno (r. 476-491 AD), passively accepting the declaration. The imperial title in the West, however, was no more.