https://en.wikipedia.org/wiki/Saturn_Devouring_His_Son

According to the traditional interpretation, it [the painting] depicts the Greek myth of the Titan Cronus (in the title Romanised to Saturn), who, fearing that he would be overthrown by one of his children, ate each one upon their birth. The work is one of the 14 Black Paintings that Goya painted directly onto the walls of his house sometime between 1819 and 1823.