Why was aeneas referred to as aeneas the pius?

Aeneas was referred to as "Aeneas the Pious" due to his deep sense of duty, compassion, and reverence for the gods and his family. In Virgil's "Aeneid," he exemplifies piety through his commitment to his mission of founding Rome, honoring his father's memory, and caring for his son. His actions reflect a balance of personal sacrifice and devotion to divine will, embodying the ideal of a virtuous leader in Roman culture.