Book IV strongly indicates Propertius was planning a new direction for his poetry. The book includes several aetiological poems which, in reviewing the mythological origins of Rome and its landmarks, can also be read as critical—even vaguely subversive—of Augustus and his agenda for the new Rome. The position is currently a subject of debate among modern classicists. The final poem is a touching address by the recently deceased Cornelia consoling her husband Lucius Aemilius Lepidus Paullus and their three children. Although the poem (given Cornelia's connection to Augustus' family) was most likely an imperial commission, its dignity, nobility, and pathos have led critics to call it the "queen of the elegies", and it is commonly considered the best in the collection.