Djer was the second king during the 1st Dynasty, when the crown still resided at Memphis. He was the son of Aha and one of his lesser ranked wives, a woman named Hent. Djer built a palace at Memphis where he ruled Egypt from for fifty years. He also launched a successful military campaign to fight the Hekssus in Sinai. His name was found in an inscription on the Wadi Halfa, south of the first Cataract, proving the boundaries of his reign. Djer's wife was Queen Herneith. He was buried in a mortuary complex which is called the True Grave of the god Osiris.