Who were Telphus' grandparents on his father's side?
Telephus In Greek mythology, Telephus ( ; Greek: Τήλεφος , "Tēlephos", "far-shining") was the son of Heracles and Auge, daughter of king Aleus of Tegea; and the father of Eurypylus. He was intended to be king of Tegea, but instead became the king of Mysia in Asia Minor. He was wounded by the Achaeans when they were coming to sack Troy and bring back Helen to Sparta.
Mares of Diomedes The Mares of Diomedes (Greek: Διομήδους ἵπποι ), also called the Mares of Thrace, were man-eating horses in Greek mythology. Magnificent, wild, and uncontrollable, they belonged to Diomedes (not to be confused with Diomedes, son of Tydeus), king of Thrace, son of Ares and Cyrene who lived on the shores of the Black Sea. Bucephalus, Alexander the Great's horse, was said to be descended from these mares.