John Rockefeller, $340 billion
The name of John Rockefeller means a lot for US history and his fortune is estimated to be $340 billion. Even today, it is almost the biggest fortune ever. He was born in 1839 in New York, and he became one of the founders of Standard Oil. Rockefeller is also known as a philanthropist: when he was alive, he founded 2 colleges, the Chicago University, and the Rockefeller University. He died in 1937 at the age of 97.
https://www.msn.com/en-in/money/photos/the-20-richest-people-of-all-time/ss-BBsg
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Gaddafi was assassinated by USA because he wanted to create currency backed up with gold and start doing oil transactions with it. If he did succeed USA would start spiraling down into recession because they would have nowhere to launder freshly printed dollars.
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However, the richest families are not publicly known.
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