(CNN) -- It's being called the most expensive divorce in the history of ... well, marriage. 

Russia's Dmitry Rybolovlev, 47, earned the dubious honor when Geneva, Switzerland's Court of First Instance last week ordered the 47-year-old billionaire to pay his wife, Elena, about 4 billion Swiss francs, according to CNN's French affiliate BFM. 

That's a little more than $4.5 billion (little being a relative term). 

The couple was married for 23 years but have been engaged in divorce proceedings since 2008, BFM reported, citing the Swiss daily newspaper Le Temps. 

Rybolovlev, who owns the French soccer team AS Monaco, which finished second in Ligue 1 this season, is No. 148 on Forbes' list of billionaires. His estimated worth is $8.8 billion, according to Forbes. 

Known lately for real estate moves -- including the purchases of a $300 million penthouse in Monaco and a $98 million Palm Beach, Florida, mansion owned by Donald Trump, along with his daughter's purchases of an $88 million New York apartment and the Greek island of Skorpios -- Rybolovlev made his original fortune in fertilizer, according to Forbes. 

He and his father, a scientist, started their business in 1990, and Rybolovlev began buying shares of industrial enterprises in 1992, Forbes reported. 

In 1995, he was named chairman of the board of Uralkali, Russia's top producer of potassium fertilizers, Forbes said. He sold his stake in Uralkali for $6.5 billion in 2010 and procured a controlling stake in AS Monaco the following year. 

The divorce puts Rybolovlev in rarefied company, as only French businessman and art dealer Alec Wildenstein and Bernie Ecclestone, the top dog in Formula One racing, have been reported to shell out more than $1 billion in divorce proceedings. 
Who got divorced?
How old is Dmitry?
How much is he to pay her?
How long were they husband and wife?
Does he own a soccer team?
what team?
What court ordered him to pay?
How much is it computed to American dollars?
Is he on Forbes' list of billionaires?
What number does he come in at on the list?
How much is he worth?
How long has their divorce been going on?
Does he own an expensive house?
How much did it cost?
where is the house located?
How did he make his money?
Did he work with his father?
when did they start working together?
What was he appointed in 1995?
Dmitry and Elena Rybolovlev
Dmitry Rybolovlev, 47, earned the dubious honor when Geneva, Switzerland's Court of First Instance last week ordered the 47-year-old billionaire to pay his wife, Elena,
47
Dmitry Rybolovlev, 47,
about 4 billion Swiss francs
about 4 billion Swiss francs
23 years
The couple was married for 23 years 
yes
Rybolovlev, who owns the French soccer team AS Monaco
AS Monaco
Rybolovlev, who owns the French soccer team AS Monaco
Geneva
Geneva, Switzerland's Court of First Instance
a little more than $4.5 billion
That's a little more than $4.5 billion
yes
 is No. 148 on Forbes' list of billionaires
No. 148
is No. 148 on Forbes' list of billionaires
His estimated worth is $8.8 billion
His estimated worth is $8.8 billion, according to Forbes. 
since 2008
have been engaged in divorce proceedings since 2008
yes
purchases of a $300 million penthouse
$300 million
including the purchases of a $300 million penthouse
in Monaco
$300 million penthouse in Monaco
fertilizer
Rybolovlev made his original fortune in fertilizer,
yes
He and his father, a scientist, started their business in 1990
in 1990
He and his father, a scientist, started their business in 1990
chairman of the board of Uralkali,
In 1995, he was named chairman of the board of Uralkali,