King Alexander I of Yugoslavia ruled the Kingdom of Serbs, Croats and Slovenes (1921–29) and of Yugoslavia (1929–34).
Alexander the Great was the King of Macedonia. During his leadership he united Greece, reestablished the Corinthian League and conquered the Persian Empire.
Anne of Austria, queen consort of France, was married to the 14-year-old Louis XIII and later mothered Louis XIV.
Anne of Cleves was the fourth wife of Henry VIII. She briefly served as queen of England.
Marie Antoinette helped provoke the popular unrest that led to the French Revolution and to the overthrow of the monarchy in August 1792.
Attila the Hun was one of the most successful barbarian rulers of the Hunnic Empire, attacking the Eastern and Western Roman empires.
Hussein bin Talal served as king of Jordan from 1953 to 1999. He helped guide his country into the modern era.
Anne Boleyn, the second wife of King Henry VIII, served as queen of England in the 1530s. She was executed on charges of incest, witchcraft, adultery and conspiracy against the king.
Joseph Bonaparte was the older brother of Napoleon I, who made him king of Spain. He served as Spain's king from 1808 to 1813.
Louis Bonaparte was Napoleon I's third surviving brother and was king of Holland from 1806 to 1810.
Hugh Capet was a 10th century monarch who started the Capetian Dynasty of France.
Charlemagne was the founder of the Carolingian Empire, best known for uniting Western Europe for the first time since the fall of the Roman Empire.
Charles I of Hungary was forced to surrender his power to Wenceslas of Bohemia, but later reclaimed the throne and formed a defensive alliance with Poland.
Charles I was a monarch of the Hapsburg line who was the last emperor of Austria and king of Hungary. He lost his throne at the end of World War I.
Charles II was the monarch of England, Ireland and Scotland during much of the latter half of the 17th century, marking the Restoration era.
Charles IX was King of France from 1560 until 1574 during the turbulent time of the Wars of Religion.
Charles VI, nicknamed Charles the Mad, was king of France from 1380 to 1422—a period marked by political chaos and France’s defeat by England at Agincourt.
As queen of ancient Egypt, Cleopatra is one of the most famous female rulers in history. The stories surrounding Cleopatra's tragic life inspired a Shakespeare play.
Marie de' Medici is best known for serving as queen consort of Henry IV of France.
King Edward I reigned England from 1272 to 1307, during which time he conquered Wales, expelled the Jews and signed many parliamentary statutes.
King Edward VII took over the British throne after the death of Queen Victoria. He was a popular ruler who strengthened his country prior to World War I.
Edward VIII became king of the United Kingdom following the death of his father, George V, but ruled for less than a year. He abdicated the throne in order to marry his lover, Wallis Simpson, thereafter taking the title Duke of Windsor.
Arab statesman Faisal I was king of Iraq from 1921 to 1933 and a leader in advancing Arab nationalism during and after World War I.
Isabella Farnese was the Queen consort of Spain, wife of Philip V of Spain. She exerted tremendous influence of Spain's foreign policy and expansion.
Empress Frederick was the oldest child of Queen Victoria and Prince Albert of England. She married the future German Emperor Frederick III in 1858, thusly becoming empress of Germany and queen of Prussia.
Frederick II, known as Frederick the Great, was Prussia's king from 1740 to 1786. By winning wars and expanding territories, he established Prussia as a strong military power.
Born in 1865, George V served as king of the United Kingdom from 1910 to 1936, during World War I. He was succeeded by his son, George VI, following his death.
George VI served as king of the United Kingdom during World War II and was an important symbolic leader. He was succeeded by Queen Elizabeth II, in 1952.
Hatshepsut was the longest reigning female pharaoh in Egypt, ruling for 20 years in the 14th century B.C. She is considered one of Egypt's most successful pharaohs.
Henry IV Holy Roman Emperor became king of Germany in 1056 and was abdicated in 1105. He overthrew Pope Gregory VII because of a disagreement about imperial rule.
Henry IV was King of France 1589–1610. The first monarch of France’s Bourbon Dynasty, he issued The Edict of Nantes, granting religious freedom to Protestants.
Henry V served as joint king of Germany with Henry IV until he forced his father to abdicate the throne. Holy Roman emperor from 1111 to 1125, he was the last of the Salian line.
Henry VI was the German king and Holy Roman emperor (1165-1197). His main achievement was increasing his dynasty's power by acquiring of the kingdom of Sicily.
Henry VII was a 13th century German king and son of Frederick II, who was Holy Roman emperor.
Henry VII became the first House of Luxembourg member to serve as king of Germany in 1308. In 1312, he became the House of Luxembourg's first Holy Roman Emperor.
Henry VIII, king of England, was famously married six times and played a critical role in the English Reformation, turning his country into a Protestant nation.
James I was a Spanish king best known for fighting the Moors during his reign from 1213-'76. He is also known as James I the Conqueror and James I of Aragon.
Jezebel was a Phoenician princess, later the wife of King Ahab of Israel. She became known for putting on makeup before her death and being a wicked woman.
Legendary King Arthur formed the Knights of the Round Table and defended ancient Wales from encroaching Saxons.
King Tut is chiefly known for his intact tomb, discovered in Egypt's Valley of the Kings in 1922. Since then, his remains have held millions in awe over the mystery of his life and death.
Louis VII was king of France who pursued a long rivalry with Henry II of England.
Louis XII was king of France from 1498 and was noted for his disastrous Italian wars and his domestic popularity.
King Louis XIV of France led an absolute monarchy during France’s classical age. He revoked the Edict of Nantes and is known for his aggressive foreign policy.
Louis XV was king of France from 1715 to 1774. He is best known for contributing to the decline of royal authority that led to the French Revolution in 1789.
Louis XVI was the last king of France (1774–92) in the line of Bourbon monarchs preceding the French Revolution of 1789. He was executed for treason by guillotine in 1793.
Macbeth was king of Scotland during the 11th century. He was also the basis for Shakespeare's play Macbeth.
Mahmud of Ghazna is best known as the the leader of the Ghaznavid dynasty in modern-day Iran, Afghanistan, Pakistan and northwest India.
Mary II served as queen of England, Scotland and Ireland (1689–94), and was the wife of King William III.
Mary of Teck became Queen Mary, consort of King George V. She was the mother of kings Edward VIII and George VI, and the grandmother of Queen Elizabeth II.
Maximilian I was the first king of Bavaria (1806–25), a member of the house of Wittelsbach.
Miguel I was became regent of Portugal in February 1828, and ruled the nation as a self-proclaimed king from 1828 to 1834, though his royal title wasn't recognized everywhere.
An Egyptian queen renowned for her beauty, Nefertiti ruled alongside her husband, Pharaoh Akhenaten, during the mid-1300s B.C.
Of Spanish descent, the devout, learned Catherine of Aragon was the 16th-century Queen of England due to her marriage to Henry VIII.
King Philip II of Spain, also known as Philip the Prudent, ruled one of the world's largest empires. The Philippines are named after him.
Elizabeth I was the long-ruling queen of England, governing with relative stability and prosperity for 44 years. The Elizabethan era is named for her.
Queen Elizabeth II of Great Britain was crowned in 1953. Her 60 years on the throne was celebrated in June 2012, with the Diamond Jubilee.
Mary Queen of Scots is one of the most fascinating and controversial monarchs of the 16th century who claimed the crowns of four nations in her lifetime.
Queen Elizabeth was the Queen consort of King George VI until his death in 1952. She is best known for her moral support to the British people during WWII and her longevity.
Queen Noor of Jordan, who was the consort of King Hussein, was trained as an urban planner and works as a philanthropist/world activist.
Queen Victoria was queen of Great Britain from 1837 to 1901—the longest reign of any other British monarch in history.
Queen Rania of Jordan is best known for her advocacy work in public health, education and as an outspoken opponent of the practice of "honor killings."