What was the name of the old order of france that maintained three social classes

I think its called the the French revolution social hierarchy

Estates is your answer

The old order of France was known as the 3 Estates, which was made up of:

Clergy: Made up of the Church, Priests, and those connected with the Church, which were tax free.

Aristocracy: Made up of the Noble classes, they were generally those who were rich and owned land with a family title. They also were exempt from taxes.

Commoners: The lowest Estate, which was the largest group, bore the largest burden of taxes, and were generally mistreated by the royalty.

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the answer is

from the conditions of the working class in england by friedrich engels,the main idea is :