Name the Protestants present at those councils.

Cathy:

What council did the Protestent sects hold to declare the books of their Bible?
Or did they simply rely on the Tradition of the Jews and the Tradition of the Catholics?

Lutero: 

The EXACT same council Polycarp and Irerenaeus used to determine what was scripture.

Name the Protestants present at those councils.

Sincerely,

De Maria