Petr Kellner

Petr Kellner (20 May 1964 – 27 March 2021) was a Czech billionaire entrepreneur. He was the founder of the PPF Group. He had a net worth of $17.5 billion, making him the wealthiest person in the Czech Republic.
On 27 March 2021, Kellner and four other people died in an Airbus AS350 B3 helicopter crash, while heliskiing in Alaska's backcountry near Knik Glacier, east of Anchorage.