It is currently fashionable, in some quarters, to go on about sovereignty and perhaps even absolutism with an air reminiscent of some sort of spiritual quality.
What is usually lacking in this discussion is a real understanding of what the inter-generational effects are of these ideas. The kings who managed to promote themselves as absolute did not realize they were ushering in the age of the bureaucrat- they merely thought they were consolidating power. But by creating a pretext via which an 'expert' can usurp the desires of an owner- well, they planted the seeds of their own destruction as well as the modern, cancerous state.
What ever authority exists must be passed on to the next generation, just like whatever property exists must be passed on to the next generation. If they aren't passed on, they will soon not exist, or return to a state of nature.
The degeneracy that exists now is, in some ways, worse than a state of nature, because there are rewards to dysgenic behavior while it lasts.
A state of nature is what we rose up out of- the mind-numbingly slow business of increasing IQ over time happened in Christian Europe- slowly, over time- and this happened because the effects of governance at the time selected for it.
So, instead of natural selection, we want, at the very least, the level of selection we had in Christendom.
So, the sovereign must exercise the same right as anyone else- the right of ownership. It must be a difference in degree, but not in kind. Selection for the traits of good ownership should prevail. This requires the need for all to be able to rise, but also, for all to be able to fail. While it may seem unstable in theory, in practice it would be more robust. Hopefully, each new generation would become better at administrating property- and finding the particular family member who actually ought to be administering. Indeed, this process tends to produce more geniuses than we do at present- and geniuses are wasted on such simple matters. Geniuses are also often temperamentally unsuited to such things.