In Greek mythology, Phemonoe ( /fiˈmɒnoʊ.i/;[1] Ancient Greek: Φημονόη) was a Greek poet of the ante-Homeric period. She was said to have been the daughter of Apollo, his first priestess at Delphi,[2] or of his possible son Delphus, and the inventor of the hexameter verses, a type of poetic metre.[3]