Yep, prevention of the establishment of an official state religion, not free individuals establishing their own.
IIRC, it was Henry VIII wanting to divorce one wife and marry another? Rome’s religion wouldn’t let him so he established C of E.
Rome’s politics woudnt let him.
The wife was Catherine of Aragon, sister of King Philip of Spain. The Pope understood basic geography, that he could afford to tick off Henry (over in England) by not granting the divorse more than he could Philip (with a big army right next door) by granting it.