Russian billionaire Vladimir Potanin faces one of the biggest divorce claims of $7 bn

Russia's second-richest man Vladimir Potanin is facing a $7-billion divorce claim, one of the world's biggest divorce claims after Jeff Bezos and Bill Gates, from his ex-wife Natalia Potanina. Vladimir's ex-wife has reached a London court seeking 50% of the value of his stake in his mining company Nornickel. The amount could exceed $7 billion, Bloomberg reported.