Charles Spencer, 9th Earl Spencer – $149 million
His younger brother, Charles Spencer (the ninth Earl Spencer), was the younger sister of Princess Diana (the eighth Princess Diana). He inherited his fortune and was able to make a name for himself in his field thanks to his regal position. While working as a news correspondent for NBC, which is owned by the New York Times, he became well-known. He was quite good with money, which was why he had so much money stashed away at Bank of America.

Charles Spencer, 9th Earl Spencer – $149 million