TIMOMACHUS, a Greek painter of the 1st century B.C. He was noted especially for two pictures, one of which represented Ajax during his madness, the other Medea meditating the slaying of her children. Both of these works were remarkable for their power of expression, especially in the face, and so belong to the latest phase of Greek art. Of the Medea we may form some notion from paintings found at Pompeii, representing that heroine standing with a sheathed sword in her hand, and watching the children at play (Helbig, Wandgemälde Campaniens, Nos. 1262–1265).