Paul Kantner, one of the cofounders of Jefferson Airplane, has died.

He was 74 years old.

TheSan Francisco Chroniclereports Kantner died Thursday in San Francisco due to multiple organ failure and septic shock.

Paul Kantner

Credit: George Napolitano/Getty Images

A San Francisco native, Kantner was born March 17, 1941.

He attended Santa Clara University and San Jose State before dropping out to pursue music full time.

They recruited guitarist Jorma Kaukonen and played their first gig in August 1965.

Speaking to EW in 2007, Kantner recalledSurrealistic Pillowas a very naively beautiful, fresh album celebrating life.

I dont think any of us thought the band would be a long-term project, he said.

We thought we could change the world just by being good people, the dumb fs that we were.

Jefferson Airplane released seven albums and played at Woodstock.

After Airplane broke up in 1972, Jefferson Starship became its own entity, featuring some Airplane band members.

Kantner stayed with the group from 1974 until 1984.

Jefferson Airplane reunited in 1989 to release a self-titled album.

Kantner and various iterations of Jefferson Starship have toured since reuniting in 1992.

Kantner is survived by a daughter, China, and two sons, Gareth and Alexander.