Can theocracy co-assist with monarchy

I think your question if if they can "co-exist", correct?

They can and they have coexisted many times in the past, and even today. A monarchy with teocracy happens when there is a ruler (monarch ) who has an absolute or near-absolute power and claims to derive this power from God.

A historical example is ancient Egypt and a current example is Vatican City

The answer is society was a caste like system with poor whites at the bottom of the white social ladder.