GLAUCUS, son of Sisyphus and Merope, grandson of Æolus, and grandfather of Bellerophon. He dwelt at Potnia; despised the power of Venus or Aphrodite; and prevented his mares from breeding, in order that they might be the stronger for the race. Another version is, that he fed them on human flesh for the purpose of rendering them spirited and warlike. This roused the anger of Aphrodite, so that she destroyed him—some say by causing his horses to take fright and throw him out of the chariot, while he was contending at the funeral games in honour of Pelias; others, that his horses tore him to pieces, having drunk from the waters of a sacred well in Æcota, which caused them to go mad. One of the lost tragedies of Æschylus was called Γλαυκός Ποτνίας.