Final answer:
Propertius was a poet who lived during the Augustan era and was under the patronage of Augustus, the first Roman Emperor.
Step-by-step explanation:
Propertius lived and wrote under the reign and patronage of Augustus. Sextus Propertius was a Latin elegiac poet of the Augustan era, which is the period during the reign of Caesar Augustus when literature flourished with writers like Virgil, Horace, and Ovid. It was a time when the political conditions allowed for substantial patronage of the arts, and Augustus himself, as the first Roman Emperor, was a significant patron of the literary arts. Propertius was a poet who lived during the Augustan era and was under the patronage of Augustus, the first Roman Emperor.