Σνέφρου, also known as Snefru, was an ancient Egyptian pharaoh of the Fourth Dynasty, ruling around 2613 to 2589 BCE. He is credited with significant advancements in pyramid construction, transitioning from step pyramids to true pyramids. His most famous structures include the Bent Pyramid and the Red Pyramid at Dahshur. Snefru is often regarded as a pioneering figure in the development of royal tomb architecture. His reign marked a period of innovation and experimentation, laying the groundwork for future pharaohs, including his son, Khufu, who built the Great Pyramid of Giza.