Tetrarchs in our history, but differs in outcome. The eponymous eight Caesars are Maximianus , Galerius , Licinius , Severus , Constantinus , Domitianus , Alexander and Maxentius . In the end, Maximianus and Galerius are dead, Licinius, Severus, Constantinus, Domitianus and Alexander are all defeated by Maxentius and the Empire