Flavius Valerius Severus
Constantius' Caesar, he became Augustus when Constantius died. After Maxentius
seized power, Severus marched, but Maxentius bribed the troops and Severus was imprisoned
and later executed.
M. Aurelius Valerius Maxentius
Maximian's son, he had expected to become Caesar in 305. When this did not happen,
He seized power in Rome, first as Caesar, then Augustus, reigning until his death in
battle against Constantine in 312.
Galerius Valerius Maximinus
Galerius' son-in-law, and Caesar, he became Augustus in the East in 309. In 313 he
invaded Licinius' territory, was defeated, and soon took his own life.
Valerius Licinianus Licinius
Augustus after the death of Constantius, he had to accept Constantine as Caesar,
marrying Constantine's half-sister. Licinius overcame Maximinus to control the
eastern empire, which he ruled until Constantine overthrew him in 324.