The origins of Prussian power can be traced to the early thirteenth century, when the Teutonic Knights established their presence in the Baltic region. These crusading warriors, originally founded to fight in the Holy Land, turned their attention northward to the pagan tribes of Prussia, Lithuania, and Livonia. Through a combination of religious fervor and brutal military efficiency, the Teutonic Order carved out a substantial territory along the Baltic coast, establishing the foundations upon which later Prussian power would be built.
The transformation from religious military order to secular state began in earnest during the sixteenth century, when Albert of Brandenburg-Ansbach, the last Grand Master of the Teutonic Order, converted to Lutheranism and secularized the order's territories. In 1525, Albert became the first Duke of Prussia, establishing a hereditary duchy under Polish suzerainty. This seemingly modest change would prove to have far-reaching consequences, as it established the principle of centralized, personal rule that would become characteristic of Prussian governance for centuries to come.