Bernard, CEO and chairman of LVMH, is the world's richest person with a $158.5 billion net worth.
Related Video 5 ways Elon Musk shook up Twitter as CEOAlexandre Arnault and Bernard Arnault in 2016.
Representatives for LVMH, Arnault, and Guiony did not respond to requests for comment from Business Insider.
The new appointments also drum up speculation about who will succeed Bernard as LVMH's CEO.
The Arnault family has been compared to the Roy family, the subjects of the HBO drama, "Succession."
Persons:
Alexandre Arnault, Moët Hennessy, Bernard Arnault's, —, Bernard Arnault's multibillion, LVMH, Bernard, Christian Dior, Bernard's, Alexandre, Elon Musk, Bernard Arnault, Donato Sardella, Louis Vuitton, Jean, Jacques Guiony, Guiony, — Alexandre, Frédéric —, Delphine Arnault, Dior Couture, Antoine Arnault, Antoine, Jean Arnault, Roy, Roy family's
Organizations:
Service, company's Sustainability, LVMH's, Product, Communications, Tiffany, LVMH, Business, Reuters, Christian Dior, HBO, New York Times
Locations:
LVMH