Zeus's other demigod daughter, Ceroessa, daughter of io (also apparently io can do prophecies, don't think about it) "not so did I love Inachos's lo, the wandering heifer, from whom beside the Nile came the line begun by Epaphos and primeval Ceroessa"-Nonnus, Dionysiaca
"But when she (io) reached Thrace, she left the name to the place as "Bosporus"; and coming to that which is called Ceras, to the confluence of the Cydarus and the Barbyssus, where she foretold things to come for the inhabitants, she gave birth to Ceroessa at the altar of Semestra, from whom that place is called Ceras. Others refer the cause of the name more to the position of the place; others call it the horn of the goat Amalthea because of the abundance of fruits. This Ceroessa, brought up at the altar of Semestra, when she excelled in beauty and far surpassed the other Thracian maidens, was embraced by the sea-god Neptune and bore Byzas, so named from his nurse Byzia, a nymph who raised him in Thrace; whose waters the citizens still draw even now" "Not long after, a certain Strombus, himself a son of Ceroessa, led a numerous army and made war on the Byzantines" -FRAGMENTA HISTORICORUM GRAECORUM
"Semystra was a nymph, the nurse of Nais Keroessa. For Io, by the machinations of Zeus and the rage of Hera, wandering loose in the shape of a cow, beset by a winged gadfly, traveled much of the earth and driven to this place went into labor (for she was pregnant with a divine child) and deposited here a female infant. Semystra picked up and fostered the baby who was marked by her maternal transformation. For the implanted print of horns protruded on both sides of her forehead. Whence she was called Keroessa (horned). Her son by Poseidon was Byzas"-Dionysius of Byzantium, Anaplous of the Bosporos
i couldnt find a free copy of eustathius on dionysius periegetes ðŸ˜
