hi! not discouraging anyone from taking a stab at this one, but FYI, you may be interested in some previous posts on this topic

General:

• Why did Protestantism appeal so much to people of Northern Europe?

• Why is Protestantism/Catholicism in Europe based upon a North/South Divide?

• Most Germanic countries are predominantly Protestant/Reformed while Latin countries are predominantly Catholic. Why did this split happen?

• What factors helped determine whether a European country would convert to Protestantism or remain Catholic during/after the Reformation?

• Who tended to convert to Protestantism during the Protestant Reformation and why?

• What was the appeal of Protestantism to those living in Reformation Europe?

A few examples:

• Why did Southern Germany stay Catholic after the Protestant Reformation?

• How did Scandinavian countries become Protestant while much of Europe remained Catholic

• How did Poland remain Catholic?

• Why did the Protestant/Reform movement never take hold in Spain or Italy?