In Greek mythology, Tithonus or Tithonos (Ancient Greek:
Τιθωνός) was the lover of Eos, Titan of the dawn. He was a
Trojan by birth, the son of King Laomedon of Troy by a water
nymph named Strymo (Στρυμώ). In the mythology known to the
fifth-century vase-painters of Athens, Tithonus was envisaged
as a rhapsode, as the lyre in his hand, on an oinochoe of the
Achilles Painter, ca. 470 BC–460 BCE (illustration) attests.
Competitive singing, as in the Contest of Homer and Hesiod, is
also depicted vividly in the Homeric Hymn to Apollo and
mentioned in the two Hymns to Aphrodite....
（Τιθωνός), a son of Laomedon, and brother of Priam (Hom. Il.
20.237), or according to others (Serv. ad Virg. Georg. 1.447,
3.48), a brother of Laomedon. Others, again, call him a son of
Cephalus and Eos. (Apollod. 3.14.3.) By the prayers of Eos who
loved him he obtained from the immortal gods immortality, but
not eternal youth, in consequence of which he completely
shrunk together in his old age, whence an old decrepit man was
proverbially called Tithonus. (Hom. Hymn. in Ven. 219 ; Hes.
Theog. 984 ; Apollod. 3.12.4 ; Tzetz. ad Lyc. 18 ; Hor. Carm.
1.28. 8; Ov. Fast. 1.461.)
[L.S] - A Dictionary of Greek and Roman biography and
mythology, William Smith, Ed.