Alexandra Andresen
Net Worth: $1.2 Billion
At age 21, the heiress Alexandra Andresen, as of 2017, is the youngest female billionaire in the world. She is the daughter of Johan H. Andresen Jr, the Norwegian industrialist who owns Ferd AS. He transferred 80% of his shares from Ferd Holding to his daughters. Alexandra received hers at only age 19. What a way to start off your adult life!
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