The Death of Hyacinthos by Jean Broc

Hyacinth (Ὑάκινθος) was a young Spartan boy, the subject of affection of the god Apollo. The myth goes that the two young men liked to play discus together, and would often enjoy each other’s company by competing against each other. One day, Hyacinth attempted to impress Apollo by catching his discus. Unfortunately, the discus struck Hyacinth across the forehead, cracking his skull and killing him. Overcome with grief, Apollo refused to let Hades take the boys body, and instead turned his blood into a flower, writing the words ‘ai ai’ across the petals to signify his grief.

 Another version states that Zephyrus, the god of the west wind, was also infatuated with Hyacinth. Jealous of Apollo and wishing to cause him harm, he blew the wind so the discus would strike Hyacinth and kill him.

As an aside: The classic depiction of intercrural sex in ancient Greek artwork is of Zephyrus and Hyacinth on a red-figure vase.