This is true. Kassandra was a princess of Troy, daughter of King Priam and Queen Hecuba. She was considered one of the most beautiful women in the world. She was a priestess of the Apollo God who made her prophesy, but as a rejection of God, she made no one believe her prophecies. She predicted the true meaning of the trojan horse but due to the curse of Apollo no one believed her and the destruction of Troy was inevitable.
I hope my answer can help you.
