 The Romans began a siege, and tried to breach the city defenses several times but were repelled, however, the situation worsened, so Zenobia, Vaballathus's mother, left the city and headed east to ask the Sassanians, for help.The Romans whatsoever followed the queen, arrested her near the Euphrates and brought her back to the emperor.Soon after, the Palmyrene citizens asked for peace, and the city fell.