sentences:  In the 1st century BC, Cleopatra VII (51–30 BC) built a mammisi and a sacred lake there in honour of her son, the very young Ptolemy XV Caesarion.The building remained visible until 1861, when it was demolished to reuse its material in the construction of a sugar factory; however, etchings, prints and previous studies (for example the Napoleonic "Description de l'Égypte") show its appearance.Only the remains of the pylon of Thutmose III are still visible — in addition to the ruins of two entrances, one of which was built under the 2nd century AD Roman emperor/Pharaoh Antoninus Pius.