This coin is interesting because it shows some of the convoluted politics going on at the time. It was issued for Constantine and Maximian Herculius, who had formed an alliance. This type, besides indicating an alliance, is actually recognizing Maxentius in Rome, even though Constantine officially remained neutral in the fight between Maxentius and Galerius. Since Maxentius was the son of Maximian though, Constantine had to show some sort of support. Constantine even married Fausta, who was the daughter of Maximian and sister of Maxentius, thereby making Constantine the brother-in-law of Maxentius. However, this newly forged alliance would not last long and soon discord ensued resulting in the deaths of Maxentius, Maximian and years later, Fausta.