Pietas
Pietas (Classical Latin: [ˈpiɛtaːs]), translated variously as "duty", "religiosity" or "religious behavior", "loyalty", "devotion", or "filial piety" (English "piety" derives from the Latin), was one of the chief virtues among the ancient Romans. It was the distinguishing virtue of the founding hero Aeneas, who is often given the adjectival epithet pius ("religious, devoted") throughout Virgil's epic Aeneid.