Johann Rupert & family

Johann Rupert is chairman of Swiss luxury goods firm Compagnie Financiere Richemont.

The company is best known for the brands Cartier and Montblanc.

It was formed in 1998 through a spinoff of assets owned by Rembrandt Group Limited (now Remgro Limited), which his father Anton formed in the 1940s.

He owns 7% of diversified investment firm Remgro, which he chairs, as well as 25% of Reinet, an investment holding company based in Luxembourg.

In recent years, Rupert has been a vocal opponent of plans to allow fracking in the Karoo, a region of South Africa where he owns land.