Dmitry Rybolovlev

Rybolovlev' built his fortune in Uralkali, Russia's largest producer of potassium fertilizers, during the 1990s privatization era.

He sold his stake in Uralkali for $6.5 billion in 2010 and doesn't appear to have any business in Russia these days.

He has spent roughly $1 billion on property in Europe, including Greek island Skorpios and $400 million Monaco penthouse La Belle Époque.

After a nasty years-long divorce battle, Rybolovlev was ordered to pay his ex-wife $605 million. In Oct. 2015 they reached an undisclosed settlement.

Rybolovlev sued art dealer Yves Bouvier, who had helped him buy 38 pieces for $2 billion, in messy dispute. Prosecutor dropped criminal charges in 2021.

He went into business with his scientist father in 1990 after studying medicine at Russia's Perm Medical Institute.