My whole post needs a lot of reworking/expanding to really do what I'm trying to describe justice but something like the Royal Family becomes more like a cult over time, some family businesses can become similar.
It's called a monarchy.
"....Monarchy thus entails not only a political-administrative organization but also a “court society,” a term coined by the 20th-century German-born sociologist Norbert Elias to designate various groups of nobility that are linked to the monarchical dynasty (or “royal” house) through a web of personal bonds. All such bonds are evident in symbolic and ceremonial proprieties...."
Monarchy | Definition, Examples, & Facts | Britannica
Monarchy, political system based upon the undivided sovereignty or rule of a single person. The term applies to states in which supreme authority is vested in the monarch, an individual ruler who functions as the head of state and who achieves his or her position through heredity.
www.britannica.com
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