2018 San Francisco mayoral special election
Ed Lee, who was appointed Mayor of San Francisco in 2011 following Gavin Newsom's election as Lieutenant Governor of California, elected to a full term in 2011, and reelected in 2015, died of cardiac arrest on December 12, 2017. London Breed, the President of the San Francisco Board of Supervisors, became the city's acting mayor.
Mayor of San Francisco
As of July 2018, six former San Francisco mayors are alive, the oldest being Dianne Feinstein (1978–1988; born 1933). The most recent mayor to die is Ed Lee, on 12 December 2017 (while still in office).