Swedish Industrialist Carl Bennet made his first fortune by perfecting systems designed to keep the spread of infection in hospitals at bay.

FORBES: Charlene de Carvalho-Heineken

When fortunes get spread across several generations, Forbes considers the wealth to be a family fortune and excludes the owners from our billionaires list.

FORBES: Billionaire Obituaries 2011

Shortly after the currency launched, articles spread around the internet arguing that Bitcoins would protect wealth from hyperinflation and that early adopters would make a fortune.

ECONOMIST: Bitcoin