French billionaire Bernard Arnault names daughter as chief of Dior

French billionaire Bernard Arnault announced on Wednesday that his daughter Delphine would head his LVMH luxury empire's Dior fashion house in a leadership shuffle also featuring a new CEO at flagship brand Louis Vuitton.

The shake-up at LVMH's two leading brands came as Arnault has seen his wealth soar to new heights, overtaking Tesla and Twitter chief Elon Musk as the world's top billionaire late last year.

Bernard Arnault said the appointment of Delphine, a top executive at Louis Vuitton, as head of Christian Dior Couture is the "continuation of a career of excellence in fashion and leather goods".

Under her direction, Louis Vuitton was able to "fly from record to record" and her "sharp eye and incomparable experience will be decisive assets in the continued development of Christian Dior", Arnault said in a statement.

She will succeed Pietro Beccari, who will replace Michael Burke as head of Louis Vuitton, the world's leading luxury brand in terms of sales, famous for its handbags bedecked with the initials "LV".

Bernard Arnault praised Beccari for his "exceptional work" as head of Dior over the past five years.

"Nobody doubts that he will lead Louis Vuitton towards even greater desirability and success," he said.

Arnault also congratulated Burke for his "great job" during 10 years at the helm of Vuitton, which helped to "widen the gap with our competition".

Burke will take up a new position alongside Bernard Arnault.

Arnaud Cadart, portfolio manager at the Paris-based asset management firm Flornoy, said the appointments of Beccari and Delphine Arnault were "clear signs of trust" and a "desire to keep a balance between outside people and Arnault family members".