Charles II, Duke of Saxe-Weimar-Eisenach (1625-1683), was a German nobleman and a member of the House of Wettin. He ruled over the duchy of Saxe-Weimar-Eisenach from 1662 until his death. His reign was marked by efforts to promote culture and education, as well as the development of the arts in his territories. During his rule, Charles II was known for his patronage of notable figures, including the famous writer Johann Wolfgang von Goethe. He also played a significant role in the political landscape of the Holy Roman Empire, navigating the complexities of alliances and conflicts during a tumultuous period in European history.