Who is XXX's sister?
Apollo
Wife of Erginus Trophonius (possibly) Unknown consorts Acraepheus, eponym of the city Acraephia Chariclo (possibly) Erymanthus Marathus, eponym of Marathon Megarus Melaneus Oncius Phemonoe Pisus, founder of Pisa in Etruria Younger Muses Cephisso Apollonis Borysthenis