Clemente Del Vecchio, 19, son of Leonardo Del Vecchio, who was EssilorLuxottica's chairman until his passing in 2022, has topped the list with $3.9 billion. He is followed by Kim Jung-youn, 19, who along with his sister Kim Jung-min (4th) hold approximately 31% of NXC. Kevin David Lehmann, 21, who owns 50% stake in German drugstore chain, dm, is 3rd.