Cytus

A son of Zeus by the Rhodian nymph Himalia. Brother to Cronius, and Spartaeus.

Rhodian folklore mentions Cytus as being the semi-divine mortal who convinces Zeus to cast Darius out of Olympus and to bestow Darius' title as god of gems on himself.

[5.55.5] And at this period in the eastern parts of the island there sprung up the Giants, as they were called; and at the time when Zeus is said to have subdued the Titans, he became enamoured of one of the nymphs, Himalia by name, and begat by her three sons, Spartaeus, Cronius, and Cytus. Diodorus v.