Isabel Grupp: Wolfgang Grupp's niece runs million-dollar companies and has 22,000 Instagram fans. She wants to show women in particular what is really possible when you are passionate about something.

She herself was born into entrepreneurship. Her father Johannes is her “greatest role model, mentor and best friend’. “When we are together on the weekend, my father and I are in private mode. I would also like to be able to be a daughter. But it was a process to get there,” she says.