De Ceremoniis
Zoe herself died in 899. According to "De Ceremoniis" by Constantine VII, she had given birth to at least two daughters. However Leo VI still had no son and his succession was not secure. Symeon records her being buried in the temple of her namesake Hagia Zoe. However "De Ceremoniis" mentions her buried in the Church of the Holy Apostles where Leo VI, Theophano and third wife Eudokia Baïana were also buried. Providing both references were accurate, her remains were moved from the original burial place to that of her husband.