Hamad bin Jassim bin Jaber Al Thani

8. Hamad bin Jassim bin Jaber Al Thani

Net Worth: $3.9B
Age: 65
Country: Qatar
Industry: Finance & Investments

Al Thani was prime minister of Qatar between 2007 and 2013; he also served as foreign minister from 1992 until 2013. His great uncle founded modern Qatar in 1971, and he's a cousin of the current Emir. Through an entity called Paramount Services Holdings, Al Thani owns 3% of Deutsche Bank, his biggest publicly traded holding.