Prince Frederick of Saxony used the Protestant reformation to

Frederick III of Ernestine Saxony, commonly known as Frederick the Wise, became the first patron of the Protestant Reformation due to his defense of Luther during the early days of the Wittenberg reforms.

Explanation:

Frederick III of Ernestine Saxony, commonly known as Frederick the Wise, became the first patron of the Protestant Reformation due to his defense of Luther during the early days of the Wittenberg reforms. A known patron of humanist letters and art, especially the work of painters Albrecht Dürer and Lucas Cranach, his founding of the university in Wittenberg provided fertile ground from which the Reformation would grow. His relationship to Luther and Protestant theology, however, remains complex. Very little is known of his motives, politically or religiously, for supporting the reform. Whether out of obligation to a professor at the university he founded, dynastic rivalry, or sincere religious conviction, Frederick allowed the Protestant movement associated with Luther to gain important momentum during its infancy and sought its political legitimation thereafter.