Joannes was born in 397. The exact name of Joannes is unknown. Joannes became emperor of the Roman state in 423.
Joannes wanted to reinforce the Roman state again. Joannes tried to negotiate a non-aggression with the Gauls. But the Gauls rejected Joannes' offer.
Joannes tried to get rid of the Roman people's food problems. Joannes tried to end this african revolt. And Joannes is very close to ending this rebellion.
But in 425 III. Valentinianus fought against Joannes. Joannes tried to prevent this war. But Joannes, these efforts have not been concluded. Joannes lost the battle. And Joannes was executed and killed.