In the higher ranks of the German clergy, Gregory had many enemies.

German clergy, farmers and craftsmen were linguistically influential, particularly in the 13th and 18th centuries, bringing their own terminology to Hungary.

(This was a common illusion, based entirely on wishful-thinking, among German clergy of all sects.)

However, due to the influence of the German clergy, Stephen forbid the use of the Slavonic liturgy.

In light of their allegedly mixed loyalties, Duarte Costa called on all German and Italian clergy to resign.

Accused of heresy by the German clergy, Methodius travelled again to Rome in 879.

He also allowed Christianity to freely spread, mainly through the efforts of German clergy, in the territories under his rule.