What were the sumerian social classes in order of importance?

Upper Class

* King

* Queen

* Royal family members

* High priests

* High priestesses

* Government officials

* Military leaders

* Wealthy merchants

* Landowners

Middle Class

* Artisans

* Craftspeople

* Engineers

* Doctors

* Lawyers

* Teachers

* Accountants

* Shopkeepers

Lower Class

* Peasants

* Farmers

* Laborers

* Slaves