Which right was named by the supreme court as part of the freedoms of assembly and petitions

The right that was named by the supreme court as part of the freedoms of assembly and petitions was the Right of Association.

This right expresses the individual's right of joining and leaving groups voluntarily, to take individual actions to follow the interests of members in a collective action and to accept or reject memberships.

The Freedom of Association gives a person the right to join other people to promote, express, pursue interests that are common to them.

Moreover, this right is guaranteed by all legal systems. For example, article 11 of the European Convention on Human Rights or the United States Bill of Rights.  

it affected it because the kingdoms (with trade) slowly got richer and richer.

that is probably something for you to answer