AbstractIn 66 CE, the emperor Nero crowned the Parthian prince Tiridates I king of Armenia before the Roman people in the Forum Romanum. Much scholarship on Roman interactions with Parthia or Armenia focuses on histories of military conflict or diplomatic negotiation. Ritual and ceremonial evidence, however, is often taken for granted. This article uses the coronation to highlight a different way in which Rome articulated its relations with Parthia and Armenia to domestic and foreign audiences. It will show how Nero and his regime used the art of public spectacle to project an image of Roman superiority over Parthia and Armenia in spite of Roman military losses in the recent Armenian war. Tiridates, a Parthian prince and a brother of the Parthian king of kings, traveled to Rome to be crowned the first king of Armenia from the Parthian royal family. To receive this title, Tiridates passed by several monuments to Augustan triumphs over Parthia and Armenia in the Forum. He was also surrounded by a group of Roman citizens, who watched him as they would have watched a defeated foreign leader in a triumph. At the culmination of the ceremony, Tiridates performedproskynesisbefore Nero at therostra Augustiand was granted his crown. Through Augustus’ monuments, the collective viewing of Tiridates, and his acts of public submission and deference to Nero, the crowning intimated a new narrative about the state of Roman-Parthian/Armenian relations. While Augustus had represented Parthian and Armenian defeat in art, Nero had compelled a representative of both Parthia and Armenia to come to Rome and kneel before the emperor. Both states were now subservient to Rome, which remained the dominant power in the East.