Aelia Flaccilla was a 4th-century Roman empress and the first wife of Emperor Theodosius I. Born in Hispania, she rose to the rank of Augusta following her husband's elevation to the throne. She was the mother of two future emperors, Arcadius and Honorius, as well as a daughter named Pulcheria. Throughout her life in the Byzantine Empire, she was recognized for her deep commitment to the Nicene faith and her dedication to charitable works in Constantinople.
Life and character


As empress, Flaccilla was a staunch defender of the Nicene Creed, even intervening to prevent her husband from meeting with radical Arian leaders. She was noted by contemporary figures like Ambrose and Gregory of Nyssa for her Christian virtues and sense of justice. Beyond her political role, she actively engaged in charity, personally assisting the disabled to honor the divine source of imperial authority.
Veneration and legacy


Flaccilla is honored as a saint within the Catholic, Eastern Orthodox, and Oriental traditions. Her feast day is observed on 14 September. Her influence in the capital was significant enough that the Palatium Flaccillianum in Constantinople was named in her memory. She died in 386, shortly after her daughter, and was honored with a funeral oration by Gregory of Nyssa.
