<prompt> Pedzisa mutsara unotevera: Boka revarwi rakashandiswa naMambo Alexander Severus muhondo yake ya235 yokurwisa vaSassanid. Gare gare boka racho raizobatanidzwa muhondo yaAlexander Severus paRhine Frontier. Chaizvoizvo chaibatanidzwa muhondo dzaGallienus mukurwisana navaFrank muma250. L. Petronius Taurus Volusianus, uyo akazova Mutungamiriri wePraetorian muna 260 uye Mutungamiriri weUrban pakati pemakore ekuma260, aive Primus Pilus weboka panguva ino. Rakatsigira Umambo hweGallic hwaPostumus 260274 uye pasina mubvunzo rakarasikirwa zvikuru apo Aurelian akakoromora Tetricus I muhondo yeropa  <response>: muhondo yeCatalaunian Fields Châlons-en-Champagne muna 274. 