Livia Voigt is just two months younger than Italy's Clemente Del Vecchio, and is officially the youngest billionaire in the world. The 20-year-old Brazilian is one of the largest individual shareholders of WEG, the manufacturing behemoth that produces electrical motors, turbines and generators.

The company was co-founded by her grandfather, Werner Ricardo Voigt, and generated $6 billion in revenue in 2022 alone. Today it's valued at around $31 billion (£24.6bn)

Livia, who's worth around $1.3 billion (£982m), is prioritising her education and is currently studying psychology at university.

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