Renata Kellnerova is the widow of Petr Kellner, the former richest person in the Czech Republic, who died in March 2021 at age 56. Kellner died in a helicopter crash in Alaska during a heliskiing trip. Kellnerova and her four children control PFF Group, the $44 billion (assets) conglomerate with interests in financial services, telecommunications, media and real estate. She chairs The Kellner Family Foundation, which focuses on education.