| Rank | Name | Wealth in Billions (USD) | Country of origin | Source of Fortune | % Correct |
|---|---|---|---|---|---|
| 7. | Henry Ford | 188.1 | United States | Ford Motor Company | 74%
|
| 2. | Andrew Carnegie | 298.3 | Scotland | Carnegie Steel Company | 69%
|
| 3. | Tsar Nicholas II | 253.5 | Russia | House of Romanov | 46%
|
| 1. | John D. Rockefeller | 318.3 | United States | Standard Oil | 45%
|
| 15. | Elizabeth I | 142.9 | England | House of Tudor | 43%
|
| 10. | Cornelius Vanderbilt | 167.4 | United States | New York and Harlem Railroad | 30%
|
| 4. | William Henry Vanderbilt | 231.6 | United States | Chicago, Burlington and Quincy Railroad | 26%
|
| 8. | Marcus Licinius Crassus | 169.8 | Roman Republic | Roman Senate | 23%
|
| 14. | William II | 151.7 | England | Monarchy | 11%
|
| 6. | Andrew W. Mellon | 188.8 | United States | Gulf Oil | 4%
|
| 9. | Basil II | 169.4 | Byzantine Empire | Monarchy | 3%
|
| 11. | Alanus Rufus | 166.9 | England | Investments | 0%
|
| 12. | Amenophis III | 155.2 | Ancient Egypt | Pharaoh | 0%
|
| 5. | Osman Ali Khan, Asaf Jah VII | 210.8 | Hyderabad | Monarchy | 0%
|
| 13. | William de Warenne, 1st Earl of Surrey | 153.6 | England | Earl of Surrey | 0%
|