Bernard Arnault oversees the LVMH empire of some 70 fashion and cosmetics brands, including Louis Vuitton and Sephora. In January 2021, LVMH acquired American jeweler Tiffany & Co for $15.8 billion, believed to be the biggest luxury brand acquisition ever. LVMH spent $3.2 billion in 2019 for luxury hospitality group Belmond, which owns or manages 46 hotels, trains and river cruises. His father made a small fortune in construction; Arnault got his start by putting up $15 million from that business to buy Christian Dior in 1985. Four of Arnault's five children work in corners of the LVMH empire: Frédéric, Delphine, Antoine and Alexandre.