The world's only known transgender billionaire, Col. Jennifer Pritzker announced in August 2013 that she would live her life as a woman. Formerly known as James, the retired Army lieutenant colonel founded the Pritzker Military Library in Chicago in 2003, and through her Tawani Foundation works to preserve American military history. Jennifer is one of 11 billionaire members of the extended Pritzker family, who sold a controlling stake in industrial conglomerate Marmon Holdings to Warren Buffett's Berkshire Hathaway for $4.5 billion in 2007. Her grandfather, A.N. Pritzker (d. 1986), with his sons Jay (d. 1999), Robert (d. 2011) and Donald (D. 1972), created Marmon and hotel chain Hyatt. She is CEO of private wealth management firm Tawani Enterprises in Chicago and still owns 1.5% of Hyatt stock. Grandchild of A.N. Pritzker (d. 1986), who, with sons Jay (d. 1999) and Robert, created industrial conglomerate Marmon (sales: $7 billion) and hotel chain Hyatt (735 hotels worldwide). Plan to pass control of empire to Jay's son Tom, cousin Nick and niece Penny collapsed in 2001; family agreed to split empire 11 ways, drawing lawsuit by Robert's 2 youngest children, Matthew and Liesel. Settled for $1 billion. Dynastic carve-up in full swing. Sold undisclosed stake in Hyatt to the Walton family's private equity firm, Madrone Capital, and Goldman Sachs for $1 billion last August. Five months later sold 60% of Marmon to Berkshire Hathaway for $4.5 billion; will sell remainder by 2014.