Mammisis of Egypt: Proceedings of the First International Colloquium, held in Cairo. IFAO. BiEtud 185.27-28 March 2019.Birth Houses (Mammisis) are important components of late Egyptian temple complexes but have not been investigated in detail since the fundamental study of Franois Daumas published in 1958. In the meantime, new archaeological findings as well as re evaluations of theology and piety in Greco Roman Egypt have considerably expanded our traditional understanding of these extraordinary buildings. Therefore, reassessment of phenomena and expanded research