10. Heinz Hermann Thiele and family
Net worth: $13.5 billion
Age: 78
Source of wealth: self made; brakes
9. Georg Schaeffler
Net worth: $14.8 billion
Age: 55
Source of wealth: auto parts
8. Dietmar Hopp and family
Net worth: $15.7 billion
Age: 79
Source of wealth: self made; software
7. Hasso Plattner and family
Net worth: $15.8 billion
Age: 75
Source of wealth: self made; software
6. Theo Albrecht, Jr. and family
Net worth: $16.5 billion
Age: 68
Source of wealth: Aldi, Trader Joe's
5. Klaus-Michael Kuehne
Net worth: $17.2 billion
Age: 82
Source of wealth: shipping
2. Susanne Klatten
Net worth: $20.3 billion
Age: 57
Source of wealth: BMW; pharmaceuticals
1. Beate Heister and Karl Albrecht Jr.
Net worth: $34.3 billion
Ages: unknown
Source of wealth: supermarkets