The Iliad had nothing to say of the fate of Kassandra of Troy. Aeschylus in his Agamemnon presents her as a sharer in his death at the hands of Klytemnestra; it was regarded as perfectly permissible to introduce characters from the Iliad if their fate had not become a part of that poem. Euripides shows Kassandra as one of the Trojan captives; interestingly she is the one woman who suggests revenge on their captors, but it is also made clear that she is insane. Yet another dramatic appearance shows Kassandra as leading the women of Troy in a heroic mass suicide.
However, tablet number 803 in the Archaeological Museum in Athens reads as follows:
Zeus of Dodona, give heed to this gift
I send you from me and my family;
Agathon son of Ekhephylos,
The Zakynthian family,
Consuls of the Molossians and their allies,
descended for 30 generations
From Kassandra of Troy.