Marcos Grigorian (December 5, 1925 – August 27, 2007) was a notable Iranian-Armenian artist and a pioneer of Iranian modern art. In 1975 Grigorian helped organize the group of free painters and sculptors in Tehran and was one of its founder members. Artists Gholamhossein Nami, Massoud Arabshahi, Morteza Momayez and Faramarz Pilaram were amongst the other members of the group.
Grigorian was a trend setter in experimenting with Earth Art, in Iran. Some of his works are now on display at the Museum of Modern Art in New York, the Tehran Museum of Contemporary Art, the Museum of Contemporary Art in Kerman, and the National Gallery of Armenia. Ref. Wikipedia, iranicaonline.org