The Lepsius L Pyramid is the remain of a pyramid complex built in Dahshur, approximately 250 m (820 ft) east of the Red Pyramid of pharaoh Sneferu of the Fourth Dynasty. The identity of the pyramid owner is unknown. The site was initially visited by Karl Richard Lepsius during his 1842–45 expedition to Egypt. He provided a brief description and catalogued it as 'Steinpyramide L' in his pyramid list. The site was then excavated by Rainer Stadelmann in 1986.