Stanford football legend and former athletic director Bill Walsh passed away this morning at his Woodside, Calif. home. The NFL Hall-of-Famer and three-time Super Bowl champion coach died at age 75 after a long battle with leukemia, according to University officials.

Walsh was a fixture of both the Cardinal and national sports scenes. His Hall-of-Fame turn as head coach of the San Francisco 49ers from 1979 to 1988 was bookended by a total of five seasons leading Stanford football, 1977-78 and 1992-94.

Those years included a 1992 Blockbuster Bowl victory and 1978 Bluebonnet Bowl title for the Cardinal. Walsh was also a defensive backs coach for Stanford in the ‘60s before turning to the pro leagues.

The two-time NFL Coach of the Year became general manager of the 49ers in 1999, but stepped down two years later. He later returned to the Farm in various positions, including serving as interim athletic director for nine months following Ted Leland’s October 2005 departure.

During that time, Walsh publicly announced his 2004 leukemia diagnosis. And when current athletic director Bob Bowlsby assumed the program’s reigns last summer, Walsh remained as a special assistant.