1. King John of England (1166-1216)
Reign: 1199-1216
Notorious for: Known for his ruthless taxation policies, betrayal, and the alleged murder of his nephew Arthur of Brittany. King John’s reign was so infamous that it led to the creation of the Magna Carta, as his barons rebelled against his tyranny.
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2. Vlad the Impaler (1431-1476)
Reign: 1448, 1456-1462, 1476
Notorious for: His name, "the Impaler," comes from his preferred method of execution. Vlad III of Wallachia was notorious for his extreme cruelty, including impaling tens of thousands of people and displaying their bodies to instill fear.
3. Ivan the Terrible (1530-1584)
Reign: 1547-1584
Notorious for: The first Tsar of Russia, Ivan IV's reign was marked by extreme violence and oppression. He created the Oprichnina, a state policy that allowed for mass executions, torture, and the confiscation of lands. His violent temper led to the murder of his own son.
4. Caligula (12-41 AD)
Reign: 37-41 AD
Notorious for: Although his reign falls just outside the traditional Middle Ages, Caligula’s rule as Roman Emperor is noteworthy for its cruelty and insanity. He was infamous for his sadistic tendencies, including arbitrary executions and extravagant displays of wealth.
5. Emperor Nero (37-68 AD)
Reign: 54-68 AD
Notorious for: Like Caligula, Nero’s reign was characterized by extreme cruelty. He is often blamed for the Great Fire of Rome and persecuted Christians ruthlessly, executing them in brutal ways. His reign was marked by personal excess and violent retribution against his perceived enemies.
6. Emperor Justinian II (669-711)
Reign: 685-695, 705-711
Notorious for: Known as Justinian II Rhinotmetus (the slit-nosed), his reigns were marked by extreme cruelty. After being deposed and mutilated, he regained the throne and exacted brutal revenge on his enemies, displaying a ruthless and vengeful nature.
7. King Richard III of England (1452-1485)
Reign: 1483-1485
Notorious for: His brief reign was marred by the disappearance and presumed murder of his nephews, the Princes in the Tower. Richard III’s ruthless ambition and alleged involvement in their deaths have made him one of England's most infamous kings.
8. Emperor Heraclius (575-641)
Reign: 610-641
Notorious for: Known for his wars against the Persians and later the Islamic Caliphate, Heraclius was notorious for his brutal military campaigns, which included massacres and forced conversions of Jews.
9. King Charles VI of France (1368-1422)
Reign: 1380-1422
Notorious for: Also known as Charles the Mad, his reign was marked by periods of insanity, during which he ordered brutal punishments and executions. His mental instability led to severe political turmoil and cruelty.
10. King Henry VIII of England (1491-1547)
Reign: 1509-1547
Notorious for: Henry VIII's reign was marked by his ruthless disposition towards those who opposed him. He executed two of his wives, Anne Boleyn and Catherine Howard, and many others, including Thomas More and Thomas Cromwell, during his reign of terror.