A feudal vassal.
A feudal territory, a fief.
A fee paid by such a vassal to hold land.
Relating to feudalism, feudal.
The period during which a monarch rules.
The exercise of sovereign power.
The territory or sphere over which a kingdom; empire; realm; dominion, etc. is ruled.
To exercise sovereign power, to rule as a monarch.
To reign over (a country)
To be a dominant quality of a place or situation; to prevail, predominate, rule.
To be the winner of the most recent iteration of a competition.