Born in 1885 in Sassari, Italy; died in 1961 in Milan, Italy.
Sironi moves to Rome and attends the School of Nude Academy of Fine Arts. In 1903, he became friends with Balla, Severini and Boccioni. After a pointillist phase, he adheres to Futurism attracted by the technical experimentation and the use of colour. His first solo exhibition takes place in 1919 in Rome at the Bragaglia gallery and the following year he goes to Milan where he begins to shift towards a classical and archaic monumentality that culminates in joining the group of the Seven painters of the Twentieth century supported by Margherita Sarfatti, becoming the most significant representative. In the late 1920s and early 1930s he developed the idea of monumental and decorative painting that is in the Manifesto of Mural Painting (1933), its historical definition and poetic, like painting with an ethical and social function. In 1930s he is commissioned numerous works among them: the window of the Ministry of Corporations in Rome, the frescoes of the University of Rome, Venice and Milan at V Triennale, the great mosaic of the VI Triennale, Exposition Universal Exhibition in Paris in 1937, the mosaics of the Palace of Justice in Milan and bas-reliefs for the Palazzo dei Giornali in Milan. After the war, he returns to devote himself to easel painting characterised by a more intimate mood. He experiments with painting, graphics, theatre, sculpture and architecture. Over the years he participated in international exhibitions, Centre Pompidou, Quadrennial of Rome, Venice Biennale and exhibits in solo exhibitions in Europe and America winning prizes and awards. He is included in major public collections, Galleria Civica d’Arte Moderna in the Palazzo Massari, Ferrara; Civico Museo d’Arte Contemporanea, Milan; Museo del Novecento, Milan; Pinacoteca di Brera, Milan; Galleria Comunale d’Arte Moderna, Rome; Revoltella Museum, Trieste; Ca’ Pesaro, Venice; Guggenheim Collection, Venice; Neue Nationalgalerie, Berlin; Tate Gallery, London; the Musée National d’Art Moderne, Paris; the Vatican Museums; and the Kunsthaus Zürich, Zurich.