Why did Maximian rebel against Constantine?

... down, Maximian reclaimed the throne to support his son Maxentius (307). Persuaded to abdicate once more by Diocletian in 308, he lived at the court of Constantine, who had recently married his daughter Fausta. Maximian committed suicide shortly after the suppression of a revolt raised by him against Constantine. read more

According to Lactantius, Constantine began to tell the story as follows: that not only did the fact that Maximian's daughter not distract Maximian from treason, it was she who discovered that Maximian was planning murder even after Constantine had pardoned him for treason. read more

In 310, Maximian rebelled against Constantine while the Emperor was on campaign against the Franks. Maximian had been sent south to Arles with part of Constantine's army to defend against attacks by Maxentius in southern Gaul. In Arles, Maximian announced that Constantine was dead and took up the imperial purple. read more

In 310 AD, a dispossessed Maximian rebelled against Constantine while Constantine was away campaigning against the Franks. Maximian had been sent south to Arles with a contingent of Constantine's army, in preparation for any attacks by Maxentius in southern Gaul. He announced that Constantine was dead, and took up the imperial purple. read more