CHICAGO (CBS) — One of the richest people in the history of the world lived right here in Chicago.

Oprah? Pritzker? The Beanie Baby guy?

No.

It was Marshall Field, founder of the legendary department store by the same name. His net worth, in inflation-adjusted dollars, is $66 billion, according to Celebrity NetWorth.

The richest American ever is John D. Rockefeller at $340 billion, followed by Andrew Carnegie at $310 billion.

Microsoft founder Bill Gates is the richest living man on the list.

The richest person ever in history is an African king, Mansa Musa I–who made his $400 billion fortune by plundering West Africa’s salt and gold.

Here is the full list:

1. Mansa Musa I, (Ruler of Malian Empire, 1280-1331) $400 billion

2. Rothschild Family (banking dynasty, 1740- ) $350 billion

3. John D Rockefeller (industrialist, 1839-1937) $340 billion

4. Andrew Carnegie (industrialist, 1835-1919) $310 billion

5. Tsar Nicholas II of Russia (last Emperor of Russia, 1868-1918) $300 billion

6. Osman Ali Khan, Asaf Jah VII (last ruler of Hyderabad, 1886-1967) $236 billion

7. William the Conqueror (King of England, 1028-1087) $229.5 billion

8. Muammar Gaddafi (former Libyan leader, 1942-2011) $200 billion

9. Henry Ford (Ford Motor Company founder, 1863-1947) $199 billion

10. Cornelius Vanderbilt (industrialist, 1794-1877) $185 billion

11. Alan Rufus (Fighting companion of William the Conqueror, 1040-1093) $178.65 billion

12. Bill Gates (Founder of Microsoft, 1955- ) $136 billion

13. William de Warenne, 1st Earl of Surrey (Norman nobleman, ??-1088) $146.13 billion

14. John Jacob Astor (businessman, 1864-1912) $121 billion

15. Richard Fitzalan, 10th Earl of Arundel (English nobleman, 1306-1376) $118.6 billion

16. John of Gaunt (son of Edward III, 1330-1399) $110 billion

17. Stephen Girard (shipping and banking mogul, 1750-1831) $105 billion

18. Alexander Turney Stewart (entrepreneur, 1803-1876) $90 billion

19. Henry, 1st Duke of Lancaster (English noble, 1310-1361) $85.1 billion

20. Friedrich Weyerhaeuser (timber mogul, 1834-1914) $80 billion

21. Jay Gould (railroad tycoon, 1836-1892) $71 billion

22. Carlos Slim (business magnate, 1940- ) $68 billion

23. Stephen Van Rensselaer (land owner, 1764- 1839) $68 billion

24. Marshall Field (Marshall Field & Company founder, 1834-1906) $66 billion

25. Sam Walton (Walmart founder, 1918-1992) $65 billion

26. Warren Buffett (investor, 1930- ) $64 billion