Mir Osman Ali Khan, $230 billion
There is a chance that you have never heard of Mir Osman Ali Khan but he is definitely one of the richest men the world has ever seen. When he was the ruler of the Hyderabad State in India, he made his fortune as big as $230 billion. After the death of his father in 1911, he became the Nizam of Hyderabad and ruled for 37 years. He helped to develop education, electricity, and railroads in the area.
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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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