"It is not easy to find a Protestant prince."

The Protestant princes and theologians prohibited the mass and the Roman religion wherever they had the power.

This left Frederick as the most senior Protestant prince since no one else was willing to risk conflict with the emperor.

In modern concordats Rome has repeatedly granted the right of patronage to Protestant princes.

He changed the foreign policy completely by abandoning the alliance with the Emperor and trying to forge a coalition with the Protestant princes.

The Protestant princes, however, declared that they would not part with the confession until its reading should be allowed.

Frederick was the leader of an important group of Protestant princes, called the Evangelical Union.

Charles V continued to battle the French and the Protestant princes in Germany for much of his reign.

Despite numerous objections from some Protestant princes, help was not withheld.

Further wars were fought against Protestant princes in Germany.