Richard H. Driehaus, an avid investor who grew his grade-school coin collection into a fortune that he wielded to champion historic preservation and classical architecture, died on March 9 2021 in a Chicago hospital. He was 78. Mr. Driehaus founded the investment firm Driehaus Capital Management. Mr. Driehaus, 70, pledged $30-million to DePaul University for its College of Commerce, which has been renamed the Richard H. Driehaus College of Business. The money will be used to endow academic programs and faculty salaries. The donor graduated from the business college in 1965 and earned a master’s degree in business administration there in 1970. In addition to his gifts to DePaul, Mr. Driehaus gave $200,000 to the Better Government Association, an advocacy and investigative-journalism nonprofit; $135,269 to support the Prince of Wales Foundation in the USA; and $100,000 to the National Trust for Historic Preservation. He married when he was in his early 50s; the marriage ended in divorce. He is survived by three daughters, Tereza, Caroline and Katherine Driehaus, and two sisters, Dorothy Driehaus Mellin and Elizabeth Mellin.