Tribute (a tax)
Tribute
England was and is the ruling nation of the British Empire.
Persia.
A ruling priest is called a Theocrat
It is called the same. Other than a public ruling, which affects the relations of state governmental bodies, private ruling deals with private persons, which can be an individual or an entity, whether business or not.
The ruling trait is the Dominant trait.
what is the ruling family of an empire called?
Amonthley payment on a house is called a "Mortgage"
A fixed payment which is made annually is called an annuity.
Down payment
The ruling class of the Anglo-Saxons was known as the aristocracy.
The ruling families of China are referred to as a "dynasty". The practice of dynasties has been in place in China since ancient times.