Lepsius-L Pyramid

29.9214°N, 31.2008°E.

Thirteenth-Dynasty pyramid at North Saqqara, identified by Karl Richard Lepsius as Pyramid L during his 1842 survey and known since then by his catalogue letter. The owner has never been determined. Construction date approximately 1750 BCE. Original base approximately 30 metres per side; original height unrecovered. The superstructure had been almost entirely robbed in antiquity by the time Lepsius mapped it. Excavated in part by Cecil Firth in the 1920s and again briefly by Egyptian missions in the 1980s. The substructure preserved a small limestone burial chamber, a fragmentary sandstone sarcophagus, and a single relief block bearing parts of two royal cartouches that have been read as Merikare, Khaba, and Tantamani by different specialists — none of which are credible Thirteenth-Dynasty rulers.

A pyramid named after the German archaeologist who found it, whose builder is unknown, whose only inscribed evidence is illegible, and which two centuries of subsequent excavation have not improved on.