Crossword clues for Sister of Calliope 6 letters:URANIASister of CalliopeTHALIASister of CalliopeERATOA sister of CalliopeCLIOSister of Calliope, Erato, Euterpe, Melpomene, Polyhymnia, Terpsichore, Thalia and UraniaERATOCalliope's sisterCLIOSister of CalliopeERATOCalliope's sister museERATOSister of CalliopeCLIOCalliope's sister.EUTERPECalliope's sister.ERATOOne of Calliope's sisters.CLIOOne of Calliope's sistersERATOSister goddess of CalliopeMUSESCalliope and her sister goddessesERATOSister of Clio and Calliope