Over the years, say friends and family, Joe Nahmad changed, from outgoing and extravagant to reclusive.

FORBES: 2008 Collector's Guide

The instigator of the family's art passion is Giuseppe Nahmad, David's 75-year-old brother.

FORBES: The Art of the Deal

The Nahmad art inventory is so sweeping that almost everyone who deals in impressionist and modern work has crossed the family's path at some point.

FORBES: Magazine Article