Francisco de Goya, Bandit Murdering a Woman, oil on canvas - ca. 1798-1800
Sleep overcomes them - Francisco de Goya Los Caprichos Etching 1799
Source: wikipaintings.org
Francisco de Goya (Spanish)
The Sleep of Reason Produces Monsters
Etching, Plate 43, Los Caprichos, c. 1797
Source: Wikipedia