Imperial panegyrics of the later Imperial era combine triumphal elements with Imperial ceremonies such as the consular investiture of Emperors, and the "adventus", the formal "triumphal" arrival of an emperor in the various capitals of the Empire in his progress through the provinces. Some emperors were perpetually on the move and seldom or never went to Rome. Christian emperor Constantius II entered Rome for the first time in his life in 357, several years after defeating his rival Magnentius, standing in his triumphal chariot "as if he were a statue". Theodosius I celebrated his victory over the usurper Magnus Maximus in Rome on June 13, 389. Claudian's panegyric to Emperor Honorius records the last known official triumph in the city of Rome and the western Empire. Emperor Honorius celebrated it conjointly with his sixth consulship on January 1, 404; his general Stilicho had defeated Visigothic King Alaric at the battles of Pollentia and Verona. In Christian martyrology, Saint Telemachus was martyred by a mob while attempting to stop the customary gladiatorial games at this triumph, and gladiatorial games ("munera gladiatoria") were banned in consequence. In AD 438, however, the western emperor Valentinian III found cause to repeat the ban, which indicates that it was not always enforced.