Exodus 11:5

And all the first-born in the land of Egypt shall die, all the natural heads and representatives of families, all that was first-born, from the first-born of Pharaoh that sitteth upon his throne, even unto the first-born of the maid-servant that is behind the mill, the slave that was engaged in grinding meal on a hand-mill; and all the first-born of beasts. There Would be no exception, from the highest to the lowest the Egyptians must suffer.