The second king of the 4th Dynasty (c 2575-2465 BC) of Egypt who erected the Great Pyramid of Giza. It is the largest of the three pyramids, the length of each side at the base averaging 755 3/4 feet (230.4 m) and its original height being 481 2/5 feet (147 m). Cheops/Khufu reigned c 2570 BC. His sons, Djedefre (Redjedef) and Chephren (Khafre), succeeded him.