This man killed his wife Fausta and his oldest son Crispus, and his reforms included disbanding the Praetorian Guard.
It isn't Valens, but this Roman emperor fought and won at Adrianople as part of a campaign which included victories at the Battle of the Hellespont and the Battle of Chrysopolis. This man killed his wife Fausta and his oldest son Crispus, and his reforms included disbanding the Praetorian Guard. This emperor was succeeded by his three sons who split the empire, and he convened the (*) Council of Nicaea and issued the Edict of Milan. Coming to power after defeating Maxentius at the Battle of the Milvian Bridge, for 10 points, identify this figure whose deathbed conversion allowed him to become the first Christian Roman emperor.
It isn't Valens, but this Roman emperor fought and won at Adrianople as part of a campaign which included victories at the Battle of the Hellespont and the Battle of Chrysopolis.
Constantine I [accept Constantine the Great, prompt on Constantine]