Cassandra
according to Homeric legend, was daughter of Priam and Hecuba. She was passionately loved by Apollo, who promised to grant her whatever she might require, if she would look with favor on his suit. She demanded the power of prophecy, and as soon as she had received it, refused to perform her promise, and slighted Apollo. The god, thus disappointed, wetted her lips with his tongue, and thus no belief was ever placed in her predictions. She endeavored to prevent the entrance into Troy of the wooden horse of the Greeks, but was unsuccessful.