The book deals with two ecclesiastical palaces. They were excavated by the Egyptian antiquities service in the years 1948/49 and they are dated according to the sources to the end of the late antiquity (ca. A.D. 700). They belong thus to the few architectural monuments which beside some churches came down to us. The two palaces of Hilwan represent thus an important contribution to our knowledge of the late antique architecture of Egypt, a period of which until now only a few churches are known.