Who is Aeneas looking for in the underworld?

At last, the Trojan fleet arrives on the shores of Italy. The ships drop anchor off the coast of Cumae, near modern-day Naples. Following his fathers instructions, Aeneas makes for the Temple of Apollo, where the Sibyl, a priestess, meets him. She commands him to make his request. Aeneas prays to Apollo to allow the Trojans to settle in Latium.