Lammot du Pont Copeland, Jr.

Biographical Information
"Interestingly, one of the few members of the ((Dupont)) clan who even tried to become a big entrepreneur on his own was Lammot du Pont Copeland Jr. (known as "Motsey") who flopped so dismally in 1970 that he was obliged to file the biggest personal bankruptcy action in U.S. history, listing liabilities of $59 million. But all's well that ends well. By 1985 the timely arrival of some new inheritances had restored his fortunes and put him back on the Forbes 400 list with a net worth of $150 million."

His father is Lammot du Pont Copeland.