Of all the ways that Renaissance society was hierarchically divided, what was regarded as the most "natural" distinction and therefore the most important one to defend?
Renaissance was a period of European history that was very disputed.
This period was a hierarchal age and the place of a person in the society was determined by the class that he/she was born into it.
However, the hierarchy was not limited to just rank but also included gender which was defended by revolutionary women as gender was considered as a natural distinction.
Thus, revolutionists in the process of equalisation wanted to defend gender the most.