Tetrarchy
Name - Birth - Made Caesar - Further stages of career - DeathDiocletian [Gaius Aurelius Diocletianus (Diocles)] - Dec. 22, c. 245 in Dalmatia - Emperor November 20, 284 - Abdicated May 1, 305. - Died of natural causes in 316 at Split.
Maximian [Marcus Aurelius Valerius Maximianus] - c. 250 near Sirmium - Co-emperor from April 286 for the Rhine - Co-emperor for the western Mediterranean from 293; abdicated May 1, 305; brought back in November 306; forcibly abdicated November 308; took power again in Spring 310. - Died a few weeks after taking power in 310.
Constantius I Chlorus [Flavius Valerius Constantius] - c. 250 in Dardana - Caesar from March 1, 293 for the area north of the Alps. - Western emperor from May 1, 305. - Died of natural causes on July 25, 306, at York.
Galerius [Gaius Galerius Valerius Maximianus] - near Serdica. - Caesar from March 1, 293. - Eastern emperor from May 1, 305. - Died of natural causes in May 311.
Severus II [Flavius Valerius Severus] - Pannonia - Caesar from May 1, 305. - Western emperor from July 25, 306. Imprisoned by Maximimian Maxentius. - Executed summer of 307.
Maximinus II Daia - Caesar from May 1, 305. - Eastern emperor from 309. - Killed in the autumn of 313 at Tarsus.
Maxentius [Marcus Aurelius Valerius Maxentius] - Western emperor from October 28, 306. - Brought father (Maximian) out of retirement for support against Severus II. - Died in the Tiber on October 28, 312 in the Battle of Milvian Bridge against Constantine I.
Licinius [Valerius Licianus Licinius] - c. 263 - November 308 made Augustus over the Danube. - Eastern emperor in 311, but deposed by Constantine I in 325. - Executed by Constantine I in 325.
Valens [Aurelius Valerius Valens] - Licinius declared him co-emperor in 314 during the war with Constantine. - Deposed in 314. - Executed by Licinius in 314.
Martinian [Marcus Martinianus] - co-emperor late summer 324; proclaimed by Licinus. - Deposed by Constantine I in 324. - Executed by Constantine I in 325.
