Born in Morges, Switzerland, son of a sculptor, Gregoire Muller was raised in the genteel life-environment of his maternal grandparents.

At the age of fourteen he chose the path of Painting, inspired by Picasso, Pollock and De Kooning, partly as a way to escape the conformism of the Swiss establishment. After graduation (Latin - Greek) at the College de St. Maurice, he moved to Paris and briefly attended the Academie de la Grande Chaumire to draw live models.

Soon involved with radical artists such as Daniel Buren and Olivier Mosset, he put his brushes aside to question the very notion of art through writing. In charge of the art page in Pariscope, he is also a correspondent for Art and Artists (London) and for Artsmagazine (NY).

As the May '68 events unfurled (he is incarcerated for three days) the hope for a 'counterculture' rises. After collaborating with Harald Szeeman on the legendary 'When Attitudes become Form' exhibition, he left Europe in 1969 to live in New York.