As far as divorces go, this one here might be the most expensive ever. Vladimir Potanin is one of Russia's richest men, and he could lose half of his $15 billion fortune to his ex-wife in a divorce. This is one hell of a bitter separation!

7 billion is a lot of money.

Though the billionaire offered to settle up with his former wife of 30 years, Natalie Pontanin, and properties in three different cities across the world, she says what’s rightfully hers is exactly half of what Potanin has.

“Natalia claims Potanin’s real wealth is held in offshore companies, and she’s launched an international legal battle to get hold of it,” according to CNN Money.

Sucks to be him, really. But great for his ex-wife!