Isabel dos Santos is an Angolan businesswoman, Africa's richest woman and the eldest child of Angola's former President José Eduardo dos Santos, who ruled the country from 1979 to 2017. In 2013, according to research by Forbes, her net worth had reached more than three billion US dollars, making her Africa’s first billionaire woman. A Forbes magazine article described in 2013 how Isabel dos Santos acquired her wealth by taking stakes in companies doing business in Angola, suggesting that her wealth comes almost entirely from her family's power and connections. In November 2015, the BBC named Isabel dos Santos as one of the 100 most influential women in the world.