Byzantine Empress Eudoxia dies from the miscarriage of her seventh pregnancy.

Year 404 (CDIV) was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Honorius and Aristaenetus. The denomination 404 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the events that caused the fall of the Western Roman Empire in the 5th century AD, it endured until the fall of Constantinople to the Ottoman Empire in 1453. The term 'Byzantine Empire' was coined only after its demise; its citizens used the term 'Roman Empire' and called themselves 'Romans'.

Aelia Eudoxia was Eastern Roman empress by marriage to the Roman emperor Arcadius. The marriage was arranged by Eutropius, one of the eunuch court officials, who was attempting to expand his influence. As Empress, she came into conflict with John Chrysostom, the Patriarch of Constantinople, who denounced imperial and clerical excess. She had five children, four of whom survived to adulthood, including her only son and future emperor Theodosius II, but she had two additional pregnancies that ended in either miscarriages or stillbirths and she died as a result of the latter one.