Supremus (Russian: Супремус; 1915–1916) was a group of Russian avant-garde artists led by the "father" of Suprematism, Kazimir Malevich. It included Aleksandra Ekster, Liubov Popova, Olga Rozanova, Ivan Kliun, Ivan Puni, Nadezhda Udaltsova, Nina Genke-Meller, Ksenia Boguslavskaya and others.
References
Supremus Wikipedia(Text) CC BY-SA