Wikipedia
Septimius (Roman emperor usurper)
Or see Septimius Severus, a Roman general, and Roman Emperor from April 14, 193 to 211
Septimius or Septiminus was a Roman usurper proclaimed emperor in 271, in Dalmatia, during Aurelian's reign. His revolt soon petered out, when the menace of a Gothic invasion faded out, and Septimius was killed by his own troops.