5. Susanne Klatten
The German lady got her wealth by inheritance after her father died. She inherited his 50.1% stake in Pharmaceutical and Chemicals manufacturer, Altana. She also inherited her late father's 12.5% stake in German car company, BMW. These and many more put Susanne Klatten's net worth at $18.5 billion presently. She is 54 years old.
4. Maria Franca Fissol
At 99, she is the oldest on our list. Maria is the widow of Michele Ferrero, founder of Ferrero SpA, Europe's second largest confectionery company. If you know Nutella, know this woman's company makes it. The Italian woman has a net worth of $22.1 billion.