Michaela Herz

Michaela Herz owns 45% of the private equity firm Mayfair SE, whose investments have included the sports apparel company Puma.

She is a granddaughter of Tchibo cofounder Max Herz, who built a fortune based on the import and sale of coffee.

Her father, Guenter, ran Tchibo for almost 35 years. The family also built a stake in skin-care company Beiersdorf, whose brands include Nivea.

Guenter and his sister, Daniela Herz-Schnoeckel, founded Mayfair after they sold their stake in the family business in 2003.

As one of Mayfair's managing directors, Michaela Herz is active in shaping investment decisions.