This emperor controversially executed his son Crispus and his wife Fausta, and this ruler's father had served as one of the caesars under the Tetrarchy.
This emperor controversially executed his son Crispus and his wife Fausta, and this ruler's father had served as one of the caesars under the Tetrarchy. Later in his reign this emperor defeated his rival Licinius, and this ruler passed the Edict of Milan after he defeated Maxentius at the Battle of the Milvian Bridge, where he supposedly saw a flaming cross. For 10 points, identify this 4th century Roman emperor who converted to Christianity on his deathbed and founded a city formerly called Byzantium and now called Istanbul.
This emperor controversially executed his son Crispus and his wife Fausta, and this ruler's father had served as one of the caesars under the Tetrarchy.
{Constantine} I [or {Constantine} the Great]