3. Nicholas Van Hoogstraten:
He was born in 1945 in England. His treasure is worth $750 million (£616 million). He started his career at the age of 11 with selling the stamps from his personal collections to noted collectors. At the age of 17 he joined merchant navy only for a year. Later he started the property business. By the age of 28 he became the youngest millionaire of Britain. He immigrated to Zimbabwe and owned several businesses and more than 1600 square miles of land. He is also the owner of mines in the Democratic Republic of Congo.