6. Christoffel Wiese

•  Net Worth: $3.8 B                                                                      
•  Source of Wealth: retailing
•  Citizen: Cape Town, South Africa
•  Age: 72

Another one from South Africa, Christoffel Wiese has made his wealth entirely on his own self. A self-made rich man from Africa, he is the largest stakeholder in retailing company Shoprite which is largest in Africa and also in his own country.  he holds degree of BA, LLB and Doctorate from University of Stellenbosch. He is an alumnus of University of Capetown.