Rothschild loses libel case, and reveals secret world of money and politics Thanks to billionaire's legal battle, we now know a lot more about how the super-rich work 11 FEBRUARY 2012 ... It began on Mr Rothschild's private jet from the World Economic Forum in Davos to Moscow, where they met Mr Deripaska, the aluminium plant manager who became the richest oligarch of them all, and continued on Mr Deripaska's private jet to his chalet in Siberia, where "to beat jet lag" they were whipped with birch leaves before plunging themselves into icy water – a traditional Siberian banya.