Isabel dos Santos, the eldest daughter of Angola's president, has become Africa's first female billionaire, US financial magazine Forbes has said.
The 40 year old's shares in several Portuguese firms, including a TV cable company, and an Angolan bank put her on the billionaires' list, Forbes said.
Her first venture was a restaurant in Luanda called Miami Beach, said the magazine that tracks the world's rich.
Most of the population in oil-rich Angola live on about $2 (�1.25) a day.
Angola is striving to tackle the physical, social and political legacy of a 27-year civil war that ravaged the country after independence from Portugal.
Correspondents say Ms dos Santos is a relatively shy public figure despite her successful business career.
Since setting up her restaurant in the capital, Luanda, in 1997 she has become an influential businesswoman in Angola and Portugal.
With a 28.8% stake in Zon, she sits on the Portuguese media company's board and is its largest shareholder, Forbes said.
She also sits on the board of Angola's Banco BIC and is reported to have a 25% share of the bank, the magazine reported.
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