Petr Kellner is a Czech billionaire and one of the wealthiest people in the world. Born in 1964, he is the founder and majority owner of PPF Group, a financial and investment company. He has also made investments in real estate,
From Wikipedia
Petr Kellner was a Czech entrepreneur, the founder and majority shareholder (98.93%) of the PPF Group. At the time of his death, he had an estimated net worth of $17.5 billion, making him the wealthiest person in the Czech Republic.