pharaoh of the Third dynasty of Egypt . He commissioned his official, Imhotep (ca. 2650-2600 BC), to build the first of the pyramids , a step pyramid for him at Saqqara . Variants of his name include Zoser, Dzoser, Zozer, Dsr, Djeser, Djésèr, Horus-Netjerikhet, and Horus-Netjerichet. Though there is significant controversy about