The Great Pyramid of Giza was the tomb of King Khufu.
King Khufu ruled Egypt in the 4th dynasty of the Old Kingdom, from 2551 to 2528 – BC (23 years). About the only thing we know of him is a tiny 8 inch statue of him on the left; and, of course, the largest single object ever built by hand by man – the Great Pyramid.
Khufu contributed little to the pyramid except the wealth of Egypt to build the pyramid. He probably ordered the pyramid built soon after becoming Pharaoh – and probably wanted it ready for him in 20 years.
Beyond that the man was tiny in comparison to the engineers who executed his wishes,