Haemon in Greek and Roman Biography and Mythology
3. A son of Creon of Thebes, perished, according to some
accounts, by the sphinx. (Apollod. 3.5.8; Schol. ad Eurip.
Phoen. 1760.) But, according to other traditions, he survived
the war of the Seven against Thebes, and he is said to have
been in love with Antigone, and to have made away with himself
on hearing that she was condemned by his father to be entombed
alive. (Soph. Antig. 627, &c.; Eur. Phoen. 757, 1587; Hyg.
Fab. 72.) In the Iliad (4.394) Macon is called a son of
Haemon. - A Dictionary of Greek and Roman biography and
mythology, William Smith, Ed.
Haemon in Wikipedia
According to Sophocles' play Antigone (Sophocles), Haemon
("bloody") (or Haimon, Greek :Άιμον Haimon) was the son of
Creon and Eurydice.
When Oedipus stepped down as King of Thebes, he gave the
kingdom to his two sons, Eteocles and Polynices, who both
agreed to alternate the throne every year. However, they
showed no concern for their father, who cursed them for
their negligence. After the first year, Eteocles refused to
step down and Polynices attacked Thebes with his supporters
of the Argive (the Seven Against Thebes). Both brothers died
in the battle. King Creon, Oedipus' brother-in-law and the
sons' uncle, decreed that Polynices was not to be buried.
Antigone, Oedipus' daughter and the sister of Polynices,
defied the order, but was caught. Creon decreed that she was
to be thrown into a cave with a days worth of food, in spite
of the fact that she was betrothed to his son, Haemon. The
gods, through the blind prophet Tiresias, expressed their
disapproval of Creon's decision, which convinced him to
rescind his order, and he went to bury Polynices. However,
Antigone had already hanged herself on the way to her
burial. When Creon arrived at the tomb where she was to be
left, his son, Haemon, threatens him and tries to kill him
but ends up taking his own life. Creon's wife Eurydice,
informed of Haemon's death, took her own life out of grief.
Haemon is betrothed to Antigone. He must choose between his
father (whom he has always followed) and his lover Antigone.
He chooses the morally right side of Antigone's but cannot
separate himself from either because of the strong ties of
family and love. He commits suicide because of his helpless
situation, which also leads his mother to commit suicide.
These actions cause Creon's madness at the play's
conclusion. - Wikipedia