Otherwise known as the Religious Peace of Augsburg
. This was the peace treaty
which finalised the establishment
in the Holy Roman Empire
. Officially it only recognised Lutheranism
but in practice it came to allow all Protestant sects.
It allowed the ruler of each state to chose Roman Catholicism or Lutheranism – ‘cuius regio, eius religio’.
This was the final nail in the coffin of hopes for Religious unity in the HRE.