German architect. His elder brother Johann Baptist Zimmermann was a painter and stuccoist. They descended from a family of artists and craftsmen belonging to the so-called Wessobrunner School. He worked first as a stuccoist and later as a master builder and architect. He lived in Landsberg am Lech, where he was mayor between 1748-1753. His main work is the pilgrims' church (1745-54) in Wies near Steingaden where he died in 1766. //