Who is Anna and what role does she play in the Aeneid?

Anna is the sister of Dido, the Queen of Carthage, in Virgil's "Aeneid." She plays a crucial role in facilitating the relationship between Dido and Aeneas, encouraging Dido's feelings for the Trojan hero. Anna's loyalty to her sister and her attempts to support Dido's love ultimately lead to tragedy, as Dido's obsession with Aeneas results in her downfall. Anna represents the themes of love and loyalty, as well as the personal costs of political and emotional decisions.