Liga de Esmalcalda
The Schmalkaldic League (; ; or ) was a military alliance of Lutheran princes within the Holy Roman Empire during the mid-16th century. Although originally started for religious motives soon after the start of the Reformation, its members later came to have the intention that the League would replace the Holy Roman Empire as their focus of political allegiance. While it was not the first alliance of its kind, unlike previous formations, such as the League of Torgau, the Schmalkaldic League had a substantial military to defend its political and religious interests. It received its name from the town of Schmalkalden, which is located in modern Thuringia.