Tetrarchy & Constantine Dynasty

AD 284–363

• Diocletian — AD 284–305
• Maximian — AD 286–305, 306–308, 310
• Carausius — AD 286/7–293
• Allectus — AD 293–296
• Constantius I — Caesar: AD 293–305; Augustus: AD 305–306
• Galerius — Caesar: AD 293–305; Augustus: AD 305–311
• Severus II — Caesar: AD 305–306; Augustus: AD 306–307
• Maximinus II Daia — Caesar: AD 305–309; Filius Augustorum: AD 309–310; Augustus: AD 310–313
• Maxentius — AD 306–312
• Constantine I — AD 306–337
• Licinius I — AD 308–324
• Licinius II — AD 317–324
• Crispus — AD 317–326
• Constantine II — Caesar: AD 317–337; Augustus: AD 337–340
• Constans — Caesar: AD 333–337; Augustus: AD 337–350
• Constantius II — Caesar: AD 324–337; Augustus: AD 337–361
• Dalmatius — AD 335–337
• Vetranio — AD 350
• Magnentius — AD 350–353
• Decentius — AD 350–353
• Nepotian — AD 350
• Julian II — Caesar: AD 355–360; Augustus: AD 360–363
• Helena —
• Fausta — AD 324–326
• Theodora —
• Galeria Valeria — AD 308–311
• Hannibalianus — AD 335–337