How did the religion affect the unification of Germany?

By the end of the movement, a significant number of German states had converted to Protestantism. This led to a major barrier to unification in the 1800s: as the most recent protectors of the Holy Roman Empire, the Austrians had remained Catholic. ... Prussia was Protestant - as were the northern states it most influenced.

Explanation:

By the end of the movement, a significant number of German states had converted to Protestantism. This led to a major barrier to unification in the 1800s: as the most recent protectors of the Holy Roman Empire, the Austrians had remained Catholic. Prussia was Protestant - as were the northern states it most influenced.

Explanation:

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers