Carinus died in 285.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

There were actually two emperors in the year 284. One was Carinus, and the other was Diocletian who overthrew him.

Diocletian fought a power struggle with Carinus

Prior to Diocletian's accession to power, the Roman Empire was ruled by a co-emperorship with Carinus in charge of the east and Numerian, his younger brother, in charge of the west. Diocletian was proclaimed emperor when Numerian died. Carinus set out to fight Diocletian, but lost.

The Empire was turbulent - two Emperors ruled together from 286 AD, Diocletian and Maximian. This is after an Emperor had died, Numerian, and war broke out between his successor Carinus and Diocletian.