Histories

And so evil a man was Kheops that, needing money, he put his own daughter in a brothel and made her charge a fee (how much, they did not say). She did as her father told her, but was disposed to leave a memorial of her own, and asked of each coming to her that he give one stone;

and of these stones they said the pyramid was built that stands midmost of the three, over against the great pyramid; each side of it measures one hundred and fifty feet.

The Egyptians said that this Kheops reigned for fifty years; at his death he was succeeded by his brother Khephren, who was in all respects like Kheops. Khephren also built a pyramid, smaller than his brother's. I have measured it myself.