CESARI, GIUSEPPE (1568?-164o), called I1 Cavaliere d'Arpino, also I1 Giuseppino, Italian painter, born in Rome. His father was a native of Arpino. Cesari ranks as the head of the so-called "Idealists" of his period, as opposed to the "Natural ists," of whom Michelangelo da Caravaggio was the leader. Lanzi stigmatized Cesari as not less the corrupter of taste in painting than Marino was in poetry. The defects of drawing and per spective in his work may be seen in his frescoes in the Capitol at Rome, which occupied him at intervals during 4o years. He died in Rome in 1640. His brother Bernardino assisted in many of his works.