Most Cruel Ruler

• Adolf Hitler
• Adolph Eichmann
• Attila The Hun
• Genghis Khan
• Idi Amin Dada
• Ivan IV of Russia
• Josef Stalin
• Leopold II of Belgium
• Mao Zedong
• Maximilien Robespierre
• Pol Pot
• Ruhollah Khomeini
• Tamerlane
• Vlad Tepes

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