Mythology & Beliefs: Chryseis In Greek and Roman Mythology, Chryseis was a captive maiden given to Agamemnon; his refusal to accept ransom from
her father Chryses caused Apollo to send plague on Greeks besieging Troy.
Chryseis in Wikipedia
In Greek mythology, Chryseis (Greek: Χρυσηΐς, KhrysēÝs) was a
Trojan woman, the daughter of Chryses. Chryseis, her apparent
name in the Iliad, means simply "Chryses' daughter"; later
writers give her real name as Astynome.
In the first book of the Iliad, Agamemnon enslaves her, whom
he admits is finer than his own wife, as a war prize and
refuses to allow her father, a priest of Apollo, to ransom
her. An oracle of Apollo then sends a plague sweeping through
the Greek armies, and Agamemnon is forced to give Chryseis
back in order to end it, so Agamemnon sends Odysseus to return
Chryseis to her father. Agamemnon compensates himself for this
loss by taking Briseis from Achilles, an act that offends
Achilles, who refuses to take further part in the Trojan War.
A later Greek legend, preserved in Hyginus' Fabulae, states
that she had a son by Agamemnon. In medieval literature,
Chryseis is developed into the character Cressida. - Wikipedia