The incredible life of Margarita Louis-Dreyfus - one of the richest women in the world

Margarita Louis-Dreyfus is one of the richest women in the world with a net worth of $6.4 billion (£4.5 billion).

But the Russian-born businesswoman, dubbed the "Tsarina" by the French press, in reference to the former Russian royal family, hasn't always been so wealthy.

Her life totally changed when she met her husband Robert Louis-Dreyfus on a flight in 1988 - transforming her life as a former computer equipment salesperson to full-time mother and homemaker.

But when Robert Louis-Dreyfus died from leukemia a few years later, her life took another dramatic turn again as she took over the reins at his commodities company and met a new partner - the former head of the Swiss National Bank.

Take a look at her incredible life here.