William A. Wrigley III (January 21, 1933 – March 8, 1999), known as William Wrigley, was president of the Wm. Wrigley Jr. Company, founded by his grandfather William Wrigley Jr., from 1961 until his death from pneumonia in March 1999. His father, P. K. Wrigley, preceded him as president. He was succeeded by his son Bill Wrigley Jr. as president and CEO. He inherited ownership of the Chicago Cubs in 1977. Only a few months later, his mother died, and he eventually sold the team to the Chicago Tribune in 1981 to pay off the tax bill.