Short answers, pulled from the story.
The site known today as Dendera has been a place of worship since the 23rd century before the Common Era. An early structure likely began under Pepi I and finished during the reign of his son Merenre Nemtyemsaf I.
The earliest surviving building in the complex is the mammisi raised by Nectanebo II between 360 and 343 BC. He was the last native pharaoh to rule Egypt.
Frenchmen removed this bas relief from the temple ceiling in 1820. They replaced the original carving with a copy shortly after removal.
As of March 2021 the second phase of restoration was completed. Workers cleaned the Great Pillars Hall thoroughly and restored original colors and clarity of painted scenes on walls and ceilings.
Recent excavations uncovered a limestone sphinx in March 2023. This sphinx features a slight grin and dimples on its face and was created in the image of Roman emperor Claudius.