A propylon introduces, from the beginning of the first millennium AD, the religious complex of Medamud, on which is based an enclosure dated to Augustus by a commemorative stele. Although the construction of the gate was probably contemporary with that of the enclosure and the decoration of the embrasures began during this reign, the monument is known as the "Gate of Tiberius", as the scenes and inscriptions on the facade and on the reverse side, as well as three scenes in the northeast embrasure, bear the names of this emperor. The collapse of the doorway in the second half of the 18th century caused a large part of the decoration to disappear before F. Bisson de la Roque cleared the scree in 1926. A significant number of blocks, fortunately photographed by Cl. Robichon in 1936, disappeared also before the end of the 20th century. In spite of these regrettable losses, the preserved scenes and inscriptions, almost entirely unpublished, represent an extremely precious and revealing contribution to our knowledge of the local theology in the Ptolemaic and Roman periods, the elevation of the temple having been largely destroyed, and of the Theban theologies in which Medamud and its gods play a major role.