Why is Priam’s Treasure not believed to have belonged to King Priam?

"Priam’s Treasure" is not believed to have belonged to the legendary King Priam because it was discovered in the archaeological layer of Troy II, which dates to the Early Bronze Age (roughly 3000 to 1750 BCE).12

Heinrich Schliemann, the archaeologist who discovered the trove, mistakenly identified this layer as the Homeric Troy of the Iliad. However, subsequent scholarship and excavations—most notably by the University of Cincinnati—have identified Troy VIIa as the likely capital of King Priam. Troy VIIa dates to a much later period, closer to 1260 BCE, and shows evidence of a siege and destruction by fire that aligns more closely with the Greek tradition of the Trojan War. Consequently, the artifacts Schliemann unearthed significantly predate the era of the Trojan War.321