The youngest billionaire in the world is a 19-year-old Norwegain heiress, Alexandra Andresen, who has a 42.2% stake in her family’s business. Her net worth now is estimated to be $1.2 billion (£862 million).

She is the daughter of Johan H. Andresen jr., the Norwegian industrialist and owner of Ferd AS, a privately held investment company, who in 2007 transferred 42.2% each to Alexandra and her sister Katharina Andresen.

Her sister Katharina is second youngest, as she is 20 years old now. It is widely believed that wealthy youth is fond of showing off and public life, but the lives of these girls are not actively covered by media, as they are trying to keep their routine private.

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