What is "shepseskaf"

Shepseskaf was the sixth and last pharaoh of the Fourth dynasty of Egypt during the Old Kingdom. He reigned 6 to 8 years starting circa 2510 BC. The only activities firmly datable to his reign are the completion of the temple complex of the Pyramid of Menkaure and the construction of its own mastaba tomb at South Saqqara, the Mastabet el-Fara'un, "stone bench of the pharaoh”.