The Rockefeller family is one of the richest and most well-known dynasties, they held positions in politics, influenced environmental protection, and owend some of the most expensive and real estate in the world. So how do they amass and hold on to so much money and how rich are they really? Today there are 6 generations of Rockefellers with the 21- member 4th generation currently controlling their enormous wealth, headed by the 100-year-old David Rockfeller. But, all of their current riches stem from one entrepreneur, John Davidson Rockefeller Senior.