Groundbreaking underground comix artist Justin Green passed away on April 23, his publisher Last Gasp of San Francisco announced.  He was 76.

Green’s work appeared in numerous anthologies in the 70s, including Young Lust and Art Spiegelman’s Arcade, but his most important work was his semi-autobiographical comic Binky Brown Meets the Holy Virgin Mary, in which he detailed his struggles coming of age as a Catholic in the 1950s.  It’s generally credited as the first autobiographical comic, and inspired later works, including the best-known autobiographical comic, the Pulitzer Prize-winner by his longtime friend, Art Spiegelman: Maus.

[Note: this article was edited as of 12:35 p.m. CT Monday, May 2, to correct our earlier report that Green and Spiegelman were roommates in the 70s.  Per a note from Spiegelman, they never lived together despite reports in places (including the Justin Green Wikipedia page) that they did.-ed.]