Who foretold the fall of troy?

The fall of Troy was foretold by several figures in Greek mythology, most notably the prophetess Cassandra. She was given the gift of prophecy by Apollo but cursed so that no one would believe her predictions. Additionally, the Greek seer Helenus, a son of Priam, also predicted the city's downfall, emphasizing the importance of the wooden horse as a key to Troy's destruction.